There will be great benefit in the forelock of the horses until the Day of judgment. (Using translation from Muslim 1871a)

أَنَّ رَسُولَ اللهِ ﷺ قَالَ الْخَيْلُ فِي نَوَاصِيهَا الْخَيْرُ أَبَدًا إِلَى يَوْمِ الْقِيَامَةِ