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?
Muhammad Muhammad (Arabic: محمد‎ ‎ ; ] ; c. 570 CE – 8 June 632 CE) is the prophet and founder of Islam. According to Islamic doctrine, he was God's Messenger, sent to confirm the essential teachings of monotheism preached previously by Adam, Abraham, Moses, Jesus, and other prophets. He is viewed as the final prophet of God in all the main branches of Islam, though some modern denominations diverge from this belief. Muhammad united Arabia into a single Muslim polity and ensured that his teachings, practices, and the Quran formed the basis of Islamic religious belief.
Khadija bint Khuwaylid Khadijah, Khadījah bint Khuwaylid (Arabic: خديجة بنت خويلد‎ ‎ ) or Khadījah al-Kubra (Khadijah the Great) (c. 555 or 567 – 620 CE) was the first wife and follower of the Islamic Prophet (Arabic: نَـبِي‎ ‎ , Prophet) Muhammad. She is commonly regarded by Muslims as the "Mother of the Believers" (i.e., Muslims). Khadijah, is regarded as one of the most important female figures in Islam, like her daughter, Fatimah. Muhammad was monogamously married to her for 25 years. After the death of Khadijah, Muhammad was later married in polygyny.