The Book of Faith
1/33. Chapter:
Evidence that love of the Ansar and Ali (r.a.) is a part of faith and a sign thereof; Hating them is a sign of hypocrisy
Sahih Muslim
وَحَدَّثَنَا عُثْمَانُ بْنُ مُحَمَّدِ بْنِ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، ح وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو أُسَامَةَ، كِلاَهُمَا عَنِ الأَعْمَشِ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي سَعِيدٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يُبْغِضُ الأَنْصَارَ رَجُلٌ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ " .
It is narrated on the authority of Abu Sa'id Khudri that the Messenger of Allah observed: The person who believes in Allah and the Last Day never nurses a grudge against the Ansar.
Reference : Sahih Muslim 77In-book reference : Book 1, Hadith 145USC-MSA web (English) reference : Book 1, Hadith 140