Muhammad bin Ishaq (may Allah have mercy on him) narrates: The Messenger of Allah (peace and blessings be upon him) married Sayyidah Zaynab bint Khuzaymah al-Hilaliyyah (may Allah be pleased with her), Umm al-Masakin (the Mother of the Poor). Before him (peace and blessings be upon him) she had been married to al-Husayn or to al-Tufayl bin al-Harith. She died in Madinah and was the first of his (peace and blessings be upon him) wives to die.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20521