Abū Dā’ūd Sulaymān ibn al-Ash‘ath ibn Isḥāq al-Azdī al-Sijistānī commonly known simply as Abu Dawud, was a Persian scholar of prophetic hadith who compiled the third of the six “canonical” hadith collections recognized by Sunni Muslims, the Sunan Abu Dāwūd. Abū Dā’ūd was born in Sijistān,  and died in 889 in Basra, Iraq. Many scholars believe he was born in Baluchistan, now part of Iran and Pakistan, and later moved to Khurāsān. He traveled widely collecting ḥadīth (traditions) from scholars in Iraq, Egypt, Syria, Hijaz, Tihamah, Nishapur, and Merv among other places. His focus on legal ḥadīth arose from a particular interest in fiqh (law). His collection included 4,800 ḥadīth.