Did Omar marry Um Kalthoom?
Ibn Abdul Bir in the book of AlIsti’aab v.1 p.425 Considered to be among the first books that were authored about the Sahaba: “Muhammad ibn Jaafer son of Abi Taleb, he is the one that married Um Kalthoom son of Ali Ibn Abi Taleb after the death of Umar Ibn Khattab” AlBeri in AlJawhara v.1 …