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’)