Mufaddal bin Fadalah reports that I asked Yazid bin Abi Habib about wiping over leather socks (khuffs), so he said that Abdullah bin Hakam narrated from Ali bin Rabah, from Sayyiduna Uqbah bin Amir (may Allah be pleased with him) this statement: Sayyiduna Uqbah informed them that once he was part of a delegation that went to Sayyiduna Umar (may Allah be pleased with him). Uqbah says: "At that time, I was wearing thick leather socks, and it was a Friday." So Sayyiduna Umar (may Allah be pleased with him) said to him: "You have acted according to the Sunnah." In another narration, the words are: "You have done right," and the word "Sunnah" is not mentioned in it.