Sunan Abi Dawud, Hadith 3661 ⓘ
Sahl b. Sa’d reported the prophet as saying: I swear on Allah, it will be better for you that Allah should give guidance to one man through your agency than that you should acquire the red ones among the camels.
حَدَّثَنَا سَعِيدُ بْنُ مَنْصُورٍ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي حَازِمٍ، عَنْ أَبِيهِ، عَنْ سَهْلٍ، - يَعْنِي ابْنَ سَعْدٍ - عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " وَاللَّهِ لأَنْ يُهْدَى بِهُدَاكَ رَجْلٌ وَاحِدٌ خَيْرٌ لَكَ مِنْ حُمْرِ النَّعَمِ " .
also referenced under: Hadith 3653 (Hasan)