Mishkat al-Masabih

He reported God’s Messenger as saying, “Blessing rests on the forelocks of the horses.” (Bukhari and Muslim.)

وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: (الْبَرَكَةُ فِي نَوَاصِي الْخَيل)