Mishkat al-Masabih 30 Fine Qualities كتاب المناقب 229

وَعَنْ أَنَسٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «آيَةُ الْإِيمَانِ حُبُّ الْأَنْصَارِ وَآيَةُ النِّفَاقِ بُغْضُ الْأَنْصَارِ» . مُتَّفَقٌ عَلَيْهِ

Anas reported the Prophet as saying, “The sign of faith is love of the Ansar and the sign of hypocrisy is hatred of the Ansar.” (Bukhari and Muslim.)