Musnad Ahmad 987:4

Abu al-Mughirah narrated to us, Abd al-Rahman ibn Amr al-Awza'i narrated to us, Yahya ibn Abi Kathir al-Yamani narrated to me, from Abu Salamah, from Ja'far ibn Amr ibn Umayyah al-Damri, from his father: "That he saw the Messenger of Allah, peace and blessings of Allah be upon him, wipe over the leather socks and the turban."