Mishkat al-Masabih 30 Fine Qualities كتاب المناقب 304

وَعَنْ بَهْزِ بْنِ حَكِيمٍ عَنْ أَبِيهِ عَنْ جَدِّهِ أَنَّهُ سَمِعَ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ فِي قَوْلِهِ تَعَالَى: [كُنْتُمْ خير أُمَّةٍ أًّخرجت للنَّاس] قَالَ: «أَنْتُمْ تُتِمُّونَ سَبْعِينَ أُمَّةً أَنْتُمْ خَيْرُهَا وَأَكْرَمُهَا عَلَى اللَّهِ تَعَالَى» رَوَاهُ التِّرْمِذِيُّ وَابْنُ مَاجَهْ وَالدَّارِمِيُّ وَقَالَ التِّرْمِذِيُّ: هَذَا حَدِيثٌ حَسَنٌ

Bahz b. Hakim, on his father’s authority, told that with reference to the words of God most high, `You were the best people brought forth for mankind[*],’ his grandfather said he had heard God’s messenger say, “You bring the number up to seventy peoples of which you are the best and most honourable in the estimation of God most high.” *Quran; 3:110 Tirmidhi, Ibn Majah and Darimi transmitted it, Tirmidhi saying this is a hasan tradition.