ABŪ AL-HUDHAYL AL-ʿALLᾹF (d. between AH 227 and 235, 842 and 850 CE), more fully Abū al-Hudhayl Muḥammad ibn al-Hudhayl al-ʿAllāf al-ʿAbdī; Muslim theologian of the Muʿtazilī school. Little is known of the life of Abū al-Hudhayl. He was a client (mawlā) of the tribe ʿAbd al-Qays and is said to have studied with a certain Uthmān al-Tawīl, an agent for the Muʿtazilī propaganda of Wāṣil ibn ʿAtaʾ (d. 748/9). About 819 he entered the court of the caliph al-Maʾmūn, where he was renowned for his skill in disputation and for his ability to quote poetry. Of his numerous theological, philosophical, apologetic, and polemic writings, none has survived. He is reported to have been more than a hundred years old at the time...