The virtue of horses; "Goodness is tied to their Forelocks." Sahih Muslim 1873 b

Arabic hadith text
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا ابْنُ فُضَيْلٍ، وَابْنُ، إِدْرِيسَ عَنْ حُصَيْنٍ، عَنِ الشَّعْبِيِّ، عَنْ عُرْوَةَ الْبَارِقِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏الْخَيْرُ مَعْقُوصٌ بِنَوَاصِي الْخَيْلِ ‏"‏ ‏.‏ قَالَ فَقِيلَ لَهُ يَا رَسُولَ اللَّهِ بِمَ ذَاكَ قَالَ ‏"‏ الأَجْرُ وَالْمَغْنَمُ إِلَى يَوْمِ الْقِيَامَةِ ‏"‏ ‏.‏
Translation
'Urwat al-Bariqi reported Allah's Messenger (ﷺ) having said this

Good is tied to the forelock of the horses. It Was said to him: Messenger of Allah, why is it so? He (the Prophet said): For reward and booty until the Day of Judgment.