‏الفضائل : Hadeeth No:5748 Anas reported this hadith through another chain of transmitters, but he made no mention of a camel-driver having a melodious voice....

‏الصلاة : Hadeeth No:2060 This hadith has been narrated by another chain of transmitters except with this variation (of words) that in the hadith narrated by Ma'mar (the words are):" I do not know whether the hadith is marfu'."...