Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: Umm Hani bint Abi Talib (may Allah be pleased with her) narrated to me that on the day of the Conquest (of Makkah) she granted protection to a man from among the polytheists. Then she came to the Prophet (peace and blessings be upon him) and mentioned this to him, and he (peace and blessings be upon him) said: "We have granted protection to the one to whom you granted protection, and we have granted safety to the one to whom you granted safety."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21357