Sayyiduna Urwah al-Bariqi (may Allah be pleased with him) said: I saw the Prophet (peace and blessings be upon him) twist the forelock of his horse between his two fingers, then he said: "Goodness is tied to the forelocks of horses until the Day of Resurrection."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14486