Sunan Ibn Majah

It was narrated from Ibn 'Umar that:He saw Sa'd bin Malik wiping over his leather socks and said: ""Is it you doing this?"" They both went to 'Umar and Sa'd said to 'Umar: ""Give my brother's son a verdict regarding wiping over leather socks."" 'Umar said: ""We used to wipe over our leather socks when we were with the Messenger of Allah and we do not see anything wrong with that."" Ibn 'Umar said: ""Even if that is after one has defecated?"" He said: ""Yes