Shabib bin Gharqadah (may Allah have mercy on him) narrates from Urwah (may Allah be pleased with him) that he heard the Messenger of Allah (peace and blessings be upon him) saying: "Goodness is tied to the forelocks of horses until the Day of Resurrection."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السبق والرمي / 19743