Musannaf Ibn Abi Shayba 1:1859

Abu Mu'awiyah narrated to us, from al-A'mash, from Muslim, from Masruq, from al-Mughirah ibn Shu'bah, who said: I was with the Prophet (peace be upon him) on a journey. He said, "O Mughirah, take the water skin." I took it, then I went out with him. The Messenger of Allah (peace be upon him) went until he was hidden from me, and he relieved himself. Then he came, and he was wearing a Syrian jubbah (outer garment) with tight sleeves. He went to take his hand out from its sleeve, but it was too tight, so he took his hand out from underneath it. I poured [water] for him, and he performed his wudu for prayer, then he wiped over his khuffayn (leather socks), then he prayed.