Narrated `Abdullah bin `Umar: Sa`d bin Abi Waqqas said, The Prophet passed wet hands over his Khuffs (socks made from thick fabric or leather). `Abdullah bin `Umar asked `Umar about it. `Umar replied in the affirmative and added, Whenever Sa`d narrates a Hadith from the Prophet, there is no need to ask anyone else about it.