ENOfficial
Sahl b. Sa’d reported the prophet (ﷺ) 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.
Source: sunnah.com
Other translations
Arabic
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 " .
sunnah.com