Messenger of Allah ﷺ said, "Good will remain (as a permanent quality) in the foreheads of horses till the Day of Resurrection." (Using translation from Bukhārī 2849)

قَالَ رَسُولُ اللهِ ﷺ الْخَيْلُ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ