Hammam bin al-Harith said: Sayyiduna Jarir (may Allah be pleased with him) urinated, then performed ablution and wiped over his leather socks. So I said to him: Do you do this even after urinating? He said: "I saw the Messenger of Allah (peace and blessings be upon him), after urinating, perform ablution and wipe over his leather socks."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 2415