The Book of Virtues
وَحَدَّثَنَاهُ ابْنُ بَشَّارٍ، حَدَّثَنَا أَبُو دَاوُدَ، حَدَّثَنَا هِشَامٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم وَلَمْ يَذْكُرْ حَادٍ حَسَنُ الصَّوْتِ .Anas reported this hadith through another chain of transmitters, but he made no mention of a camel-driver having a melodious voice
From Sahih Muslim, whose reports the scholars accept as authentic.