What follows is my provisional translation (in other words, not official or authorized; see here for more) of an Arabic prayer from Baháʼuʼlláh. For this translation, I consulted two versions of the prayer: one published in Risáliy-i-Tasbíḥ va Tahlíl, p. 234 [link]; the other in Amr va Khalq, vol. 4, p. 68 [link]. There are minor differences between the two versions, so the resulting translation is something of a composite work.
Praised be Thou, O Lord! I testify—and indeed, all things bear witness—that Thou art God, and that there is none other God but Thee. From eternity Thou hast been exalted above the praise of every created thing, and Thou wilt continue to remain the same as Thou hast always been. No God is there besides Thee, and it is unto Thee that we make our ultimate journey.
I beseech Thee, O Lord my God, to protect the bearer of this snow-white Scroll from every mischief, every affliction, and every plague. Thou keepest safe whomsoever Thou willest as Thou pleasest, and Thy knowledge encompasseth all things.
I have committed myself wholly to Thy care and protection. Shelter me, then, O Protector of the Worlds.
Two scans of the Arabic text of this prayer appear below. The version published in Risáliy-i-Tasbíḥ va Tahlíl is on top, and the one in Amr va Khalq is underneath.