 In this expedition 1 person was captured by Muslims, the rest of the tribe fled.During the reign of Caliph Umar (634–644), the Jewish community of Khaybar were transported alongside the Christian community of Najran to the newly conquered regions of Syria and Iraq; Umar also forbade non-Muslims to reside in the Hejaz for longer than three days.Since then, the Jews of Khaybar traveled around many areas throughout the Islamic Empire as artisans and merchants and maintained a distinctive identity until the 12th century.