Abu Dawud (275H)

Abu Dawud Sulayman ibn al-Ash'ath as-Sijistani (202-275H)

Al-Imam, Shaykh as-Sunnah, Muqaddim al-Huffadh, Muhaddith Basrah. He is the author of the famous book as-Sunan, which appears in the six mother books of the Hadith.