M-AL-GAYYAR, HUSSEIN2019-09-252019-09-252012-02-28http://hdl.handle.net/20.500.12424/183678This article explains about one of Prophet Muhammad's friends which is Omar Ibnul-Khattab. He was the second Khalifah (the leader of Islam after Muhammad passed away). Before he converted to Islam, he became one of the dangerous enemies of Islam. However, after he converted to Islam, he was a hero in Islam.engCreative Commons Copyright (CC 2.5)Islamic ethicsHistory in IslamReligious ethicsBook