What follows is my provisional translation of a Tablet from Baháʼuʼlláh, the original text of which is published in Áthár-i-Qalam-i-Aʻlá, vol. 6, pp. 262–3.
In the Name of the One Who Sheddeth His Splendor from the Horizon of Utterance
Verily, the call hath been raised between earth and heaven. Blessed is the ear that hath hearkened unto it, the tongue that hath answered it, the heart that hath embraced it, the foot that hath hastened unto it, the face that hath turned unto it, and the eye that hath beheld the Horizon of Revelation when it appeared and made manifest that which was desired by God, the Lord of strength and power, the One Who is potent to command. My Most Sublime Pen beareth witness that thou indeed hast recognized it, hast turned thy face unto it, hast hearkened unto it, hast entered its presence, and hast stepped through the portal that is opened to all that dwell on earth.
Say: Lauded be Thy Name, O My God! I render Thee praise for having guided Me unto the dawning-place of Thy signs, and I render Thee thanks for having given me—with the Hand of Thy bounty—to drink from the fountainhead of eternity; for having shown me Thy Supreme Horizon; and for having enabled me to hear Thy sweet voice. I beseech Thee by Thy signs—which have encompassed not only the things of this world, but also the Concourse on High and the Inmates of the All-Highest Paradise—to make me firm and steadfast in Thy love and in Thy Cause. Ordain Thou for me, then, the good of every world of Thy worlds. Thou, verily, art the Ever-Forgiving, the All-Merciful.
A typed version of the complete Arabic text of this tablet appears below (punctuation and vocalization mine).