Narrated Anas bin Malik:

that the Messenger of Allah ﷺ said: "Shall I inform you of the best houses of the Ansar, or of the best of the Ansar?" They said: "Of course, O Messenger of Allah!" He said: "Banu An-Najjar. Then those who come after them are Banu 'Abdul-Ashhal. Then those who come after them are Banu Al-Harith bin Al-Khazraj. Then those who come after them are Banu Sa'idah." Then he motioned with his hands, clenching his fingers, then opening them, like an archer does with his hands. He said: "And in all of the houses of the Ansar there is good."

حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا اللَّيْثُ بْنُ سَعْدٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ الأَنْصَارِيِّ، أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ، يَقُولُ قَالَ رَسُولُ اللَّهِ ﷺ " أَلاَ أُخْبِرُكُمْ بِخَيْرِ دُورِ الأَنْصَارِ أَوْ بِخَيْرِ الأَنْصَارِ " . قَالُوا بَلَى يَا رَسُولَ اللَّهِ . قَالَ " بَنُو النَّجَّارِ ثُمَّ الَّذِينَ يَلُونَهُمْ بَنُو عَبْدِ الأَشْهَلِ ثُمَّ الَّذِينَ يَلُونَهُمْ بَنُو الْحَارِثِ بْنِ الْخَزْرَجِ ثُمَّ الَّذِينَ يَلُونَهُمْ بَنُو سَاعِدَةَ " . ثُمَّ قَالَ بِيَدِهِ فَقَبَضَ أَصَابِعَهُ ثُمَّ بَسَطَهُنَّ كَالرَّامِي بِيَدَيْهِ قَالَ " وَفِي دُورِ الأَنْصَارِ كُلِّهَا خَيْرٌ " . قَالَ هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَقَدْ رُوِيَ هَذَا أَيْضًا عَنْ أَنَسٍ عَنْ أَبِي أُسَيْدٍ السَّاعِدِيِّ عَنِ النَّبِيِّ ﷺ .