Amr bin Wahb al-Thaqafi (may Allah have mercy on him) narrates that Mughirah bin Shu'bah (may Allah be pleased with him) said: "The Messenger of Allah (peace and blessings be upon him) wiped over his forelock and his turban, and he also wiped over his leather socks, and I was an eyewitness to it."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 18154