حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا سُفْيَانُ، عَنْ عَاصِمٍ الأَحْوَلِ، قَالَ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ، يَقُولُ حَالَفَ رَسُولُ اللَّهِ صلى الله عليه وسلم بَيْنَ الْمُهَاجِرِينَ وَالأَنْصَارِ فِي دَارِنَا . فَقِيلَ لَهُ أَلَيْسَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم لاَ حِلْفَ فِي الإِسْلاَمِ " فَقَالَ حَالَفَ رَسُولُ اللَّهِ صلى الله عليه وسلم بَيْنَ الْمُهَاجِرِينَ وَالأَنْصَارِ فِي دَارِنَا مَرَّتَيْنِ أَوْ ثَلاَثًا
Narrated Anas bin Malik:
The Messenger of Allah (ﷺ) established an alliance (of brotherhood) between the Emigrants and the Helpers in our house. He was asked: Did not the Messenger of Allah (ﷺ) say: There is no alliance in Islam ? He replied: The Messenger of Allah (ﷺ) established an alliance between the Emigrants and the Helpers in our house. This he said twice or thrice.
Reference: Sunan Abi Dawud 2926
In-book : Book 19, Hadith 42
English translation : Book 18, Hadith 2920