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Through Muhammad, Islam and Caliphate

The conversion of Umar to Islam is presented in Sunni Islam as a highly dramatic, epic, and prototypical story of embrace; initially, Umar was opposed to Muhammad, a distant Qurayshite kinsman, even setting out to kill him with his sword. However, after a spiritual break, he converted to Islam in 616, becoming the first Muslim to dare to pray openly in the Kaaba, an act followed by other Muslims. He participated in nearly all of Muhammad's battles and expeditions, and Muhammad conferred upon him the title al-Fārūq ("the Distinguisher") for his sound judgement. After Muhammad's death in June 632, Umar pledged allegiance to Abu Bakr as the first caliph and served as his chief adviser. Shortly before his death in 634, Abu Bakr nominated Umar as his successor. During Umar's reign, the caliphate expanded at an unprecedented rate. His campaigns against the Sasanian Empire resulted in the rapid conquest of Persia within two years (642-644), and more than two-thirds of the Byzantine Empire. Umar was assassinated by the Persian slave Abu Lu'lu'a Firuz in 644.

Umar is widely credited with expanding the Islamic world beyond Arabia and introducing the Hijri Calendar. Historians generally regard him as one of the most powerful and influential Muslim caliphs in history. According to Jewish tradition, Umar lifted the Christian ban on Jews entering Jerusalem and permitted them to worship there. In Sunni Islam, Umar is revered as a just ruler and a supreme model for Islamic virtues. In Shia Islam, however, he is viewed negatively.

Early life

Umar was born in Mecca as a member of the Banu Adi, a minor clan of the Quraysh. His father was Khattab ibn Nufayl and his mother was Hantamah bint Hisham of the Banu Makhzum tribe. He eventually became the leader of the Banu Adi after his father. In his youth, Umar herded camels for his father in the plains near Mecca, later recalling that al-Khattab was a harsh and coarse man who subjected him to exhausting labor. Although literacy was rare in pre-Islamic Arabia, Umar was among the few members of the Quraysh who learned to read and write in his youth. He also developed a strong appreciation for poetry and literature. In accordance with the traditions of the Quraysh, he was trained in martial arts, horse riding, and wrestling during his adolescence. Tall, physically powerful, and possessing a fiery temper, he became a renowned champion wrestler.

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Source and licence. Adapted from the Wikipedia article “Umar” (this version, 2026-09-28) by its contributors, shared under CC BY-SA 4.0. Lablypedia has left out its tables, references and most pictures, and linked it to other Lablypedia articles.