It is reported from Sayyiduna Abu Ayyub (may Allah be pleased with him) that he used to order wiping over the leather socks while he himself washed his feet. He was asked about this: "You order wiping, yet you yourself wash your feet?" He said: "How bad it would be for me if it were an ease for you and a sin upon me! I have seen the Messenger of Allah (peace and blessings be upon him) do it and order it, but I am a man to whom washing in ablution has been made beloved."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1396