Abu Dawud
Purification (Kitab Al-Taharah)
Book Number: 001 / Hadith Number: 154
Narated By Abu Zur'ah b. 'Amr b. Jarir : Jarir urinated. He then performed ablution and wiped over the socks. He said: What can prevent me from wiping (over the socks); I saw the Messenger of Allah (doing so). They (the people) said: This (action of yours) might be valid before the revelation of Surat al-Ma'idah. He replied: I embraced Islam after the revelation of Surat al-Ma'idah.'