The Messenger of Allah ﷺ said, "Goodness is tied to the forelocks of horses until the Day of Resurrection."
حدثنا محمد بن رمح أنبأنا الليث بن سعد عن نافع
عن رسول الله ﷺ أنه قال الخيل في نواصيها الخير إلى يوم القيامة
Muslim narrated it in his Sahih, in the chapter on the virtue of horses and that goodness is tied to their forelocks, hadith no. 1871, from Muhammad bin Rumh, through the same chain.