Translation:
Provisional translation
Upon thee be the peace of God and His mercy! We have beheld thy letter and read its contents. Grieve thou not over that which was mentioned concerning the cup, for verily thy Lord is the Ocean [3.5s]
علیک سلام الله و رحمته قد راینا کتابک و قرئناه لا تحزن عما ذکر فی الکوز ان ربک لهو البحار
