The Prophet ﷺ said, "Good will remain (as a permanent quality) in the foreheads of horses (for Jihad) till the Day of Resurrection, for they bring about either a reward (in the Hereafter) or (war) booty (in this world)." (Using translation from Bukhārī 2852)
أَنَّهُ سَمِعَ النَّبِيَّ ﷺ يَقُولُ «الْخَيْلُ مَعْقُودٌ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ الْأَجْرُ وَالْمَغْنَمُ»