Abu Muslim said: I was with Sayyiduna Salman (may Allah be pleased with him) when he saw a man who had broken his ablution and wanted to take off his leather socks (khuffs) for ablution. Sayyiduna Salman (may Allah be pleased with him) said: "Wipe over them and over your turban." And Sayyiduna Salman (may Allah be pleased with him) said: I saw the Messenger of Allah (peace and blessings be upon him) wiping over his head-cloth and his leather socks.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6139