His works also provide a basis for the Muslim side on the wars of Amda Seyon I against Ifat, Adal, and other regions.
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al-Umari visited Cairo shortly after the Malian Mansa Kankan Musa I's pilgrimage to Mecca, and his writings are one of the primary sources for this legendary hajj.
The historians Chihab al-Umari and al-Maqrizi simply mention the length of Sharka was three days and its breadth four, and its army could muster 3,000 cavalrymen and twice that many foot soldiers.
Muhammad al-Umari, aka Abu Ibrahim, leader of the 15 May Organization accused of involvement in the August 11, 1982 bombing of Pan Am Flight 830
Al-Umari also credits it with seven "mother cities": Belqulzar, Kuljura, Shimi, Shewa, Adal, Jamme and Laboo.