Sunan Abi Dawud 2980
Narrated Jubair b. Mu'tim:
On the day of Khaibar the Messenger of Allah (ﷺ) divided the portion to his relatives among the Banu Hashim and Banu 'Abd al-Muttalib, and omitted Banu Nawfal and Banu 'Abd Shams. So  I and 'Utham b. 'Affan went to the Prophet (ﷺ) and we said: Messenger of Allah, these are Banu Hashim whose superiority we do not deny because if the position in which Allah has placed you in relation to them ; but tell us about Banu 'Abd al-Muttalib to whom you have given something while omitting us though our relationship is the same as theirs. The Messenger of Allah (ﷺ) said: There is no distinction between us and Banu 'Abd al-Muttalib in pre-Islamic days and in Islam. We and they are one, and he (ﷺ) intertwined his fingers.
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا هُشَيْمٌ، عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، أَخْبَرَنِي جُبَيْرُ بْنُ مُطْعِمٍ، قَالَ لَمَّا كَانَ يَوْمُ خَيْبَرَ وَضَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم سَهْمَ ذِي الْقُرْبَى فِي بَنِي هَاشِمٍ وَبَنِي الْمُطَّلِبِ وَتَرَكَ بَنِي نَوْفَلٍ وَبَنِي عَبْدِ شَمْسٍ فَانْطَلَقْتُ أَنَا وَعُثْمَانُ بْنُ عَفَّانَ حَتَّى أَتَيْنَا النَّبِيَّ صلى الله عليه وسلم فَقُلْنَا يَا رَسُولَ اللَّهِ هَؤُلاَءِ بَنُو هَاشِمٍ لاَ نُنْكِرُ فَضْلَهُمْ لِلْمَوْضِعِ الَّذِي وَضَعَكَ اللَّهُ بِهِ مِنْهُمْ فَمَا بَالُ إِخْوَانِنَا بَنِي الْمُطَّلِبِ أَعْطَيْتَهُمْ وَتَرَكْتَنَا وَقَرَابَتُنَا وَاحِدَةٌ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏
"‏ أَنَا وَبَنُو الْمُطَّلِبِ لاَ نَفْتَرِقُ فِي جَاهِلِيَّةٍ وَلاَ إِسْلاَمٍ وَإِنَّمَا نَحْنُ وَهُمْ شَىْءٌ وَاحِدٌ ‏"‏ ‏.‏ وَشَبَّكَ بَيْنَ أَصَابِعِهِ ‏.‏