It is narrated from Sayyiduna Muslim Abu Awsajah (may Allah be pleased with him) that he said: I saw the Messenger of Allah (peace and blessings be upon him) urinate, then he (peace and blessings be upon him) performed ablution (wudu) and wiped over his leather socks.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17106