صَحِيحُ مُسْلِمٍ
Sahih Muslim 1873 a
The Book on Government
The virtue of horses; "Goodness is tied to their Forelocks."
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.
Sahih Muslim, 1873 aSahihصحيح