Musannaf Ibn Abi Shayba 35:305

Waki’ narrated to us, from Sufyan, from Abu Qays al-Awdi, from al-Huzayl ibn Shurahbil al-Awdi, from al-Mughirah ibn Shu’bah, that the Prophet (peace and blessings of Allah be upon him) urinated while standing, then he performed ablution and wiped over his sandals.