The Book on Government
33/26. Chapter:
The virtue of horses; "Goodness is tied to their Forelocks."
Sahih Muslim
وَحَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا زَكَرِيَّاءُ، عَنْ عَامِرٍ، عَنْ عُرْوَةَ الْبَارِقِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " الْخَيْلُ مَعْقُودٌ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ الأَجْرُ وَالْمَغْنَمُ " .
The same tradition has been narrated on the authority of Urwat al-Bariqi who said that the Prophet (ﷺ) said: Great good is attached to the forelock of the horses until the Day of Judgment.
Reference : Sahih Muslim 1873aIn-book reference : Book 33, Hadith 145USC-MSA web (English) reference : Book 20, Hadith 4616