Urwah bin al-Zubayr said: Among those of Banu Asad bin Khuzaymah who emigrated to the land of Abyssinia with Ja'far bin Abi Talib (may Allah be pleased with him) was Ubaydullah bin Jahsh bin Ri'ab, who died in the land of Abyssinia as a Christian, while his wife Umm Habibah bint Abi Sufyan, whose name was Ramlah, was with him. The Messenger of Allah (peace and blessings be upon him) then took her in marriage, and Uthman bin Affan (may Allah be pleased with him) gave her in marriage to the Messenger of Allah (peace and blessings be upon him) in the land of Abyssinia itself. The mother of Umm Habibah (may Allah be pleased with her) was Safiyyah bint Abi al-As, the sister of Affan bin Abi al-As and the paternal aunt of Uthman bin Affan (may Allah be pleased with him).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19705