 Ọzọ dị iche bụ nsogbu Koran, mgbe Sunni iji Mushab Usmani Mushab anakọtara noge Caliphate nke Usman, mgbe ahụ na-eji Mushab Shia Fatimid Fatima bụ nwa nwanyị nke onye amuma Muhammad na nwunye nke Ali. 