Muwatta Malik #72

Yahya related to me from Malik from Ibn Shihab from Abbad ibn Ziyad, a descendant of al-Mughira ibn Shuba from his father from al Mughira ibn Shuba that the Messenger of Allah, may Allah bless him and grant him peace, went to relieve himself during the expedition of Tabuk. Mughira said, "I went with him, taking water. Then the Messenger of Allah, may Allah bless him and grant him peace, came back and I poured out the water for him. He washed his hands and then went to push his hands out of the sleeves of his garment, but could not do so because of their narrowness. So he brought them out from underneath his garment. Then he washed his arms, wiped his head and wiped over his leather socks. The Messenger of Allah, may Allah bless him and grant him peace, returned and Abdar Rahman ibn Awf was leading the people in prayer, and he had already finished one raka with them. The Messenger of Allah, may Allah bless him and grant him peace, prayed the remaining raka with them to everyone's concern. When the Messenger of Allah, may Allah bless him and grant him peace, finished he said, 'You have acted correctly.' "