Sahih Muslim | Book 1 | Hadith Number 402

Narrated by Abu Huraira
Abu Huraira reported: When (this verse) was revealed to him: "Warn your nearest kinsmen." the Messenger of Allah (may peace be upon him) said: O people of Quraish, buy yourselves from Allah, I cannot avail you at all against Allah; O sons of Abd al- Muttalib. I cannot avail you at all against Allah; O Abbas b. 'Abd al- Muttalib, I cannot avail you at all against Allah; O Safiya (aunt of the Messenger of Allah), I cannot avail you at all against Allah; O Fatima, daughter of Muhammad, ask me whatever you like, but I cannot avail you at all against Allah.