Abu Huraira reported God’s Messenger as saying, "If anyone reserves a horse in God’s path with faith in God and belief in His promise, its food, drink, dung and urine will be in his scale on the day of resurrection.”
Jarir b. ‘Abdallah told that he saw God’s Messenger twisting his finger in a horse’s forelock and saying, "The horses have good tied in their forelocks till the day of resurrection, i.e. reward and spoil.”
He said that God’s Messenger disliked horses with shikal, which means a horse having a white mark on its right hind leg and left foreleg, or on its right foreleg and left hind leg.