Musannaf Ibn Abi Shaybah 233 — Those who did not accept wiping over it

Abu Labid said: Sayyiduna Ali (may Allah be pleased with him) rode on his mule to relieve himself. At that time he was wearing a lower garment (izar), an upper wrap, a turban and a pair of leather socks. He urinated, then performed ablution and took off the turban. I saw that his head was like my palm, with hair on it like the lines of fingers. He first wiped his head, then his leather socks.