The Báb makes Muhammad Sháh aware of the eventual triumph of the Cause of God

“I swear by God! I seek no earthly goods from thee, be it as much as a mustard seed.... I swear by the truth of God! Wert thou to know that which I know, thou wouldst forego the sovereignty of this world and of the next, that thou mightest attain My good pleasure, through thine obedience unto the True One.... Wert thou to refuse, the Lord of the world would raise up one who will exalt His Cause, and the Command of God will, verily, be carried into effect.” 

- The Báb  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

The Báb admonishes Muhammad Sháh for the way he had treated Him

“I swear by the truth of God! Were he who hath been willing to treat Me in such a manner to know who it is whom he hath so treated, he, verily, would never in his life be happy. Nay—I, verily, acquaint thee with the truth of the matter—it is as if he hath imprisoned all the Prophets, and all the men of truth, and all the chosen ones.... Woe betide him from whose hands floweth evil, and blessed the man from whose hands floweth good....” 

- The Báb  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

The Báb confirms with Muhammad Sháh that He did send him “a messenger and a book” in 1844

“By My life! But for the obligation to acknowledge the Cause of Him Who is the Testimony of God ... I would not have announced this unto thee.... In that same year [year 60] I despatched a messenger and a book unto thee, that thou mightest act towards the Cause of Him Who is the Testimony of God as befitteth the station of thy sovereignty....” 

- The Báb  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

The Báb proclaimed His station to Muhammad Sháh

In His Tablet to Muhammad Sháh the Báb, moreover, has revealed:

“I am the Primal Point from which have been generated all created things. I am the Countenance of God Whose splendor can never be obscured, the Light of God Whose radiance can never fade.... All the keys of heaven God hath chosen to place on My right hand, and all the keys of hell on My left.... I am one of the sustaining pillars of the Primal Word of God. Whosoever hath recognized Me, hath known all that is true and right, and hath attained all that is good and seemly.... The substance wherewith God hath created Me is not the clay out of which others have been formed. He hath conferred upon Me that which the worldly-wise can never comprehend, nor the faithful discover....” 

- Shoghi Effendi  (Quoting the Báb in ‘The Promised Day Is Come’)

The Báb also had warned the Sháh of Persia concerning Baha’u’lláh: -“ to submit unto Him Who is His Remembrance, and unto His Cause”

In the Qayyúm-i-Asmá the Báb, for His part, thus addresses Muhammad Sháh:

“O King of Islám! Aid thou, with the truth, after having aided the Book, Him Who is Our Most Great Remembrance, for God hath, in very truth, destined for thee, and for such as circle round thee, on the Day of Judgment, a responsible position in His Path. I swear by God, O Sháh! If thou showest enmity unto Him Who is His Remembrance, God will, on the Day of Resurrection, condemn thee, before the kings, unto hellfire, and thou shalt not, in very truth, find on that Day any helper except God, the Exalted. Purge thou, O Sháh, the Sacred Land [Tihrán] from such as have repudiated the Book, ere the day whereon the Remembrance of God cometh, terribly and of a sudden, with His potent Cause, by the leave of God, the Most High. God, verily, hath prescribed to thee to submit unto Him Who is His Remembrance, and unto His Cause, and to subdue, with the truth and by His leave, the countries, for in this world thou hast been mercifully invested with sovereignty, and will, in the next, dwell, nigh unto the Seat of Holiness, with the inmates of the Paradise of His good pleasure. Let not thy sovereignty deceive thee, O Sháh, for ‘every soul shall taste of death,’ and this, in very truth, hath been written down as a decree of God.” 

- Shoghi Effendi  (Quoting the Báb in ‘The Promised Day Is Come’)

Bahá’u’lláh explains to Násiri’d-Dín Sháh the intensity of His “numerous…tribulations” and His willingness to “endure” them “patiently” and even yearn for martyrdom in the path of God

“I have seen, O Sháh, in the path of God what eye hath not seen nor ear heard.... How numerous the tribulations which have rained, and will soon rain, upon Me! I advance with My face set towards Him Who is the Almighty, the All-Bounteous, whilst behind Me glideth the serpent. Mine eyes have rained down tears until My bed is drenched. I sorrow not for Myself, however. By God! Mine head yearneth for the spear out of love for its Lord. I never passed a tree, but Mine heart addressed it saying: ‘O would that thou wert cut down in My name, and My body crucified upon thee, in the path of My Lord!’... By God! Though weariness lay Me low, and hunger consume Me, and the bare rock be My bed, and My fellows the beasts of the field, I will not complain, but will endure patiently as those endued with constancy and firmness have endured patiently, through the power of God, the Eternal King and Creator of the nations, and will render thanks unto God under all conditions. We pray that, out of His bounty—exalted be He—He may release, through this imprisonment, the necks of men from chains and fetters, and cause them to turn, with sincere faces, towards His Face, Who is the Mighty, the Bounteous. Ready is He to answer whosover calleth upon Him, and nigh is He unto such as commune with Him.” 

- Bahá’u’lláh  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh makes Násiri’d-Dín Sháh aware of His God given powers and abilities

O would that thou wouldst permit Me, O Sháh, to send unto thee that which would cheer the eyes, and tranquilize the souls, and persuade every fair-minded person that with Him is the knowledge of the Book.... But for the repudiation of the foolish and the connivance of the divines, I would have uttered a discourse that would have thrilled and carried away the hearts unto a realm from the murmur of whose winds can be heard: ‘No God is there but He!’... 

- Bahá’u’lláh  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh calls on Násiri’d-Dín Sháh to “examine” these “tribulations” and “dire adversities” that are faced by Baha’i “refugees” and “bring hope to the hearts”

O King of the age! The eyes of these refugees are turned towards and fixed upon the mercy of the Most Merciful. No doubt is there whatever that these tribulations will be followed by the outpourings of a supreme mercy, and these dire adversities be succeeded by an overflowing prosperity. We fain would hope, however, that His Majesty the Sháh will himself examine these matters, and bring hope to the hearts. That which We have submitted to thy Majesty is indeed for thine highest good. And God, verily, is a sufficient witness unto Me.... 

- Bahá’u’lláh  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh explains to Násiri’d-Dín Sháh how he could adequately view “the world of being” and his own sovereignty

O King! Wert thou to incline thine ear unto the shrill of the Pen of Glory and the cooing of the Dove of Eternity which, on the branches of the Lote-Tree beyond which there is no passing, uttereth praises to God, the Maker of all names and Creator of earth and heaven, thou wouldst attain unto a station from which thou wouldst behold in the world of being naught save the effulgence of the Adored One, and wouldst regard thy sovereignty as the most contemptible of thy possessions, abandoning it to whosoever might desire it, and setting thy face toward the Horizon aglow with the light of His countenance. Neither wouldst thou ever be willing to bear the burden of dominion save for the purpose of helping thy Lord, the Exalted, the Most High. Then would the Concourse on high bless thee. O how excellent is this most sublime station, couldst thou ascend thereunto through the power of a sovereignty recognized as derived from the Name of God!... 

- Bahá’u’lláh  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh counsels Násiri’d-Dín Sháh to “judge…with truth concerning what hath befallen Him”

Look upon this Youth, O King, with the eyes of justice; judge thou, then, with truth concerning what hath befallen Him. Of a verity, God hath made thee His shadow amongst men, and the sign of His power unto all that dwell on earth. Judge thou between Us and them that have wronged Us without proof and without an enlightening Book. They that surround thee love thee for their own sakes, whereas this Youth loveth thee for thine own sake, and hath had no desire except to draw thee nigh unto the seat of grace, and to turn thee toward the right hand of justice. Thy Lord beareth witness unto that which I declare. 

- Bahá’u’lláh  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh explains to Násiri’d-Dín Sháh how He was chosen by God

The evanescent is as nothing before Him Who is the Ever-Abiding. His all-compelling summons hath reached Me, and caused Me to speak His praise amidst all people. I was indeed as one dead when His behest was uttered. The hand of the will of thy Lord, the Compassionate, the Merciful, transformed Me. Can anyone speak forth of his own accord that for which all men, both high and low, will protest against him? Nay, by Him Who taught the Pen the eternal mysteries, save him whom the grace of the Almighty, the All-Powerful, hath strengthened. The Pen of the Most High addresseth Me saying: Fear not. Relate unto His Majesty the Sháh that which befell thee. His heart, verily, is between the fingers of thy Lord, the God of Mercy, that haply the sun of justice and bounty may shine forth above the horizon of his heart. Thus hath the decree been irrevocably fixed by Him Who is the All-Wise. 

- Bahá’u’lláh  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh explains to Násiri’d-Dín Sháh that He didn’t study the “learning current amongst men”

The learning current amongst men I studied not; their schools I entered not. Ask of the city wherein I dwelt, that thou mayest be well assured that I am not of them who speak falsely. This is but a leaf which the winds of the will of thy Lord, the Almighty, the All-Praised, have stirred. Can it be still when the tempestuous winds are blowing? Nay, by Him Who is the Lord of all Names and Attributes! They move it as they list. 

- Bahá’u’lláh  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh’s proclamation to Násiri’d-Dín Sháh: - His “lengthiest Epistle to any single sovereign”

As to Násiri’d-Dín Sháh, the Lawḥ-i-Sulṭán, despatched to him from Akká and constituting Bahá’u’lláh’s lengthiest Epistle to any single sovereign, proclaims: “O King! I was but a man like others, asleep upon My couch, when lo, the breezes of the All-Glorious were wafted over Me, and taught Me the knowledge of all that hath been. This thing is not from Me, but from One Who is Almighty and All-Knowing. And He bade Me lift up My voice between earth and heaven, and for this there befell Me what hath caused the tears of every man of understanding to flow.” 

- Shoghi Effendi  (Quoting Bahá’u’lláh in ‘The Promised Day Is Come’)

A “vehement apostrophe to Constantinople”

Moreover, in the Kitáb-i-Aqdas, is this vehement apostrophe to Constantinople: “O Spot that art situate on the shores of the two seas! The throne of tyranny hath, verily, been stablished upon thee, and the flame of hatred hath been kindled within thy bosom, in such wise that the Concourse on high and they who circle around the Exalted Throne have wailed and lamented. We behold in thee the foolish ruling over the wise, and darkness vaunting itself against the light. Thou art indeed filled with manifest pride. Hath thine outward splendor made thee vainglorious? By Him Who is the Lord of mankind! It shall soon perish, and thy daughters and thy widows and all the kindreds that dwell within thee shall lament. Thus informeth thee the All-Knowing, the All-Wise.” 

- Shoghi Effendi  (Quoting Bahá’u’lláh in ‘The Promised Day Is Come’)

Bahá’u’lláh counsels Sultán ‘Abdu’l-‘Azíz “not forgetful of the law of God”

Be not forgetful of the law of God in whatever thou desirest to achieve, now or in the days to come. Say: Praise be to God, the Lord of all worlds!” 

- Baha’u’llah  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh questions Sultán ‘Abdu’l-‘Azíz if he has “any proof that can establish My disloyalty to thee?”

“Have I, O King, ever disobeyed thee? Have I, at any time, transgressed any of thy laws? Can any of thy ministers that represent thee in ‘Iráq produce any proof that can establish My disloyalty to thee? No, by Him Who is the Lord of all worlds! Not for one short moment did We rebel against thee, or against any of thy ministers. Never, God willing, shall We revolt against thee, though We be exposed to trials more severe than any We suffered in the past. In the daytime and in the night season, at even and at morn, We pray to God on thy behalf, that He may graciously aid thee to be obedient unto Him and to observe His commandments, that He may shield thee from the hosts of the evil ones. Do, therefore, as it pleaseth thee, and treat Us as befitteth thy station and beseemeth thy sovereignty. 

- Baha’u’llah  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh recounts His sufferings to Sultán ‘Abdu’l-‘Azíz

By the righteousness of God! The tribulations We have sustained are such that any pen that recounteth them cannot but be overwhelmed with anguish. No one of them that truly believe and uphold the unity of God can bear the burden of their recital. So great have been Our sufferings that even the eyes of our enemies have wept over Us, and beyond those of every discerning person. And to all these trials have We been subjected, in spite of Our action in approaching thee, and in bidding the people to enter beneath thy shadow, that thou mightest be a stronghold unto them that believe in and uphold the unity of God. 

- Baha’u’llah  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh counsels Sultán ‘Abdu’l-‘Azíz: “Let the oppressor desist from his tyranny”

Let thine ear be attentive, O King, to the words We have addressed thee. Let the oppressor desist from his tyranny, and cut off the perpetrators of injustice from among them that profess thy faith. By the righteousness of God! 

- Baha’u’llah  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)

Bahá’u’lláh counsels Sultán ‘Abdu’l-‘Azíz: - “cleanse thine heart from the world and all its vanities, and suffer not the love of any stranger to enter and dwell therein”

Return, then, and cleave wholly unto God, and cleanse thine heart from the world and all its vanities, and suffer not the love of any stranger to enter and dwell therein. Not until thou dost purify thine heart from every trace of such love can the brightness of the light of God shed its radiance upon it, for to none hath God given more than one heart. This, verily, hath been decreed and written down in His ancient Book. And as the human heart, as fashioned by God, is one and undivided, it behooveth thee to take heed that its affections be, also, one and undivided. Cleave thou, therefore, with the whole affection of thine heart, unto His love, and withdraw it from the love of anyone besides Him, that He may aid thee to immerse thyself in the ocean of His unity, and enable thee to become a true upholder of His oneness.... 

- Baha’u’llah  (Quoted by Shoghi Effendi in ‘The Promised Day Is Come’)