Abu al-Hasan 'Ali ibn Isma'il al-Ash'ari (260-324)
Al-'Allamah, Imam al-Mutakallimin. A great intelligence, he was at first Mut'azili, then he repented of these beliefs and refuted them strongly, and he died on the Sunnah.
Among the books of the Imam of Ashariyyah, Abul-Hassan al-Ash'ari (334H) in which he demonstrates his return to the Aqeedah of Ahlus Sunnah in the attributes of Allah....
The book on which Abu al-Hasan al-Ash'ari returned to the Sunnah and the way of the Salaf in Aqeedah saying the same as Imam Ahmad! A proof against Asharis.