Language:
كتاب المناقب
61
Virtues and Merits of the Prophet (pbuh) and his Companions
(2)
Chapter: Virtues of Quraish
(2)
باب مَنَاقِبِ قُرَيْشٍ

Narrated Jubair bin Mut`im:

`Uthman bin `Affan went (to the Prophet) and said, "O Allah's Messenger (ﷺ)! 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 (ﷺ) said, "Only Bani Hashim and Bani Al Muttalib are one thing (as regards family status).

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، عَنِ ابْنِ الْمُسَيَّبِ، عَنْ جُبَيْرِ بْنِ مُطْعِمٍ، قَالَ مَشَيْتُ أَنَا وَعُثْمَانُ بْنُ عَفَّانَ،، فَقَالَ يَا رَسُولَ اللَّهِ أَعْطَيْتَ بَنِي الْمُطَّلِبِ وَتَرَكْتَنَا، وَإِنَّمَا نَحْنُ وَهُمْ مِنْكَ بِمَنْزِلَةٍ وَاحِدَةٍ‏.‏ فَقَالَ النَّبِيُّ صلى الله عليه وسلم ‏ "‏ إِنَّمَا بَنُو هَاشِمٍ وَبَنُو الْمُطَّلِبِ شَىْءٌ وَاحِدٌ ‏"‏‏.‏
Reference : Sahih al-Bukhari 3502
In-book reference : Book 61, Hadith 12
USC-MSA web (English) reference : Vol. 4, Book 56, Hadith 706
  (deprecated numbering scheme)