Clothing (Kitab Al-Libas)
Dawud :: Book 32 : Hadith 4067
Narrated Ali ibn Rukanah:
Ali quoting his father said: Rukanah wrestled with the Prophet (peace_be_upon_him) and the Prophet (peace_be_upon_him) threw him on the ground. Rukanah said: I heard the Prophet (peace_be_upon_him) say: The difference between us and the polytheists is that we wear turbans over caps.