That the Prophet ﷺ said to him' "O Abu Musa! You have been given one of the mazamir (sweet melodious voices) of the family of David.'  

عَنِ النَّبِيِّ ﷺ قَالَ لَهُ يَا أَبَا مُوسَى لَقَدْ أُوتِيتَ مِزْمَارًا مِنْ مَزَامِيرِ آلِ دَاوُدَ