Sayyidah Umm Hani bint Abi Talib (may Allah be pleased with her) said: I went to the Prophet (peace and blessings be upon him) in the year of the Conquest and found him taking a bath, while Fatimah (may Allah be pleased with her) was screening him with a garment. I greeted him with salam, and he (peace and blessings be upon him) asked: "Who is this?" I said: "I am Umm Hani bint Abi Talib." He (peace and blessings be upon him) said: "Welcome to Umm Hani." When he (peace and blessings be upon him) had finished his bath, he stood and prayed eight rak'ahs, wrapped in a single garment. When he had finished, I said: "O Messenger of Allah! My brother claims that he will kill a man whom I have granted protection, so-and-so the son of Hubayrah." The Messenger of Allah (peace and blessings be upon him) said: "O Umm Hani! We too have granted protection to whomever you granted protection." Umm Hani (may Allah be pleased with her) said: And that was at the time of Duha (the forenoon).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21385