Sahih Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions
Volume: 004 / Book Number: 056 / Hadith Number: 706
Narrated Jubair bin Mut'im:
'Uthman bin Affan went (to the Prophet) and said, "O Allah's Apostle! You gave property to Bani Al-Muttalib and did not give us, although we and they are of the same degree of relationship to you." The Prophet said, "Only Bani Hashim and Bani Al Muttalib are one thing (as regards family status)."
Narrated Urwa bin Az-Zubair: 'Abdullah bin Az-Zubair went with some women of the tribe of Bani Zuhra to 'Aisha who used to treat them nicely because of their relation to Allah's Apostle.