It was narrated from Bahz bin Hakim, from his father, that his grandfather said:
“I heard the Messenger of Allah ﷺ say: ‘You complete seventy nations, of which you are the best and dearest to Allah.’”

حَدَّثَنَا مُحَمَّدُ بْنُ خَالِدِ بْنِ خِدَاشٍ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، عَنْ بَهْزِ بْنِ حَكِيمٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ " إِنَّكُمْ وَفَّيْتُمْ سَبْعِينَ أُمَّةً أَنْتُمْ خَيْرُهَا وَأَكْرَمُهَا عَلَى اللَّهِ " .