Hammam bin al-Harith narrates from Sayyiduna Jarir (may Allah be pleased with him): "He saw the Messenger of Allah (peace and blessings be upon him); he (peace and blessings be upon him) performed ablution and wiped over his leather socks."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 2414