Noor ad Deen consented to what the caliph had proposed; and there being every thing necessary for writing in the hall, the caliph wrote a letter to the king of Bussorah; at the top of which he placed this form, "In the name of the most merciful God," to shew he would be absolutely obeyed.
"Haroon al Rusheed, son of Mhadi, sends this letter to Zinebi, his cousin. As soon as Noor ad Deen, son to the late vizier Khacan, the bearer, has delivered you this letter, and you have read it, pull off the royal vestments, put them on his shoulders, and place him in thy seat without fail. Farewell."