BESṬĀMĪ (Basṭāmī), BĀYAZĪD (Abū Yazīd Ṭayfūr b. ʿĪsā b. Sorūšān; d. 234/848 or 261/875), early Muslim mystic of Iran. A descendant of a Zoroastrian family converted to Islam during the life of his grandfather Sorūšān, Bāyazīd spent most of his active life…