Abu-Musa Abd-Allah ibn Qays al-Ash'ari, better known as Abu Musa al-Ashari (Arabic: أبو موسى الأشعري) (d.ca. 662 or 672) was a companion of the Islamic prophet Muhammad and important figure in early Islamic history. He was at various times governor of Basra and Kufa and was involved in the early Muslim conquests of Persia. He was also an important participant in the troubles which occupied the caliphate of Ali ibn Abi Talib (d.661).