Abu Hajal Muslim ibn Awsaja was a companion of what prophet who was the founder of islam, and who united Arabia into a single Muslim polity?
Abu Hajal Muslim ibn Awsaja Abu Hajal Muslim ibn Awsaja (Arabic: ابوحَجَل مسلم بن عوسجه الأسدي‎ ‎ ) was a companion of Islamic Prophet Muhammad. He assisted Muslim ibn Aqeel in Kufa. Then he joined Husayn ibn Ali army with his family. He was killed in battle of Karbala.
Family tree of Umar ' Umar ibn al-Khattāb (c. 581 – 644), sometimes referred by Sunni Muslims as ' Umar al-Farooq ("the one who distinguishes between right and wrong") was from the Banu Adi clan of the Quraysh tribe. He was a companion of the Islamic prophet Muhammad and became the second Sunni Caliph (634 – 644) following the death of Abu Bakr, the first Caliph.