It is narrated from Sayyidah Umm Hani (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) stayed in her house in the year of the Conquest of Makkah. She said: So I went in to him (peace and blessings be upon him) and said: "O Messenger of Allah! I have granted protection to two men, and Ali bin Abi Talib (may Allah be pleased with him) claims that he will kill my in-law and violate my protection." The Prophet (peace and blessings be upon him) said: "We too have granted protection to whomever you granted protection." Then he (peace and blessings be upon him) prayed the Duha (forenoon) prayer, eight rak'ahs, in a single garment, crossing its two ends over each other.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21380