(33) باب الدَّلِيلِ عَلَى أَنَّ حُبَّ الأَنْصَارِ وَعَلِيٍّ رَضِيَ اللَّهُ عَنْهُمْ مِنَ الإِيمَانِ وَعَلاَمَاتِهِ وَبُغْضَهُمْ مِنْ عَلاَمَاتِ النِّفَاقِ
It is reported on the authority of Abu Huraira that the Messenger of Allah (may peace and blessings be upon him) said:
A person who believes in Allah and the Last Day never nurses a grudge against the Ansar.
Reference: Sahih Muslim 76
In-book reference: Book 1, Hadith 144
USC-MSA web (English) reference(deprecated numbering scheme): Book 1, Hadith 139