Abu Murrah, the freed slave of Umm Hani (may Allah be pleased with her), said: I heard Umm Hani bint Abi Talib (may Allah be pleased with her), who was the full sister of Ali (may Allah be pleased with him), say: "The Messenger of Allah (peace and blessings be upon him) came to me on the day of the Conquest of Makkah, took a bath, then prayed eight rak'ahs."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21391