Abdur Rahman bin Abi Layla عبد الرحمن بن أبي ليلى · The Book of Purification

"I saw the Prophet (ﷺ) wiping over the Khuff and the Khimar." A head covering not limited to the common usage of "turban" as is clear from the first narration.

"I saw the Messenger of Allah (ﷺ) wiping over the Khuff."

"I saw the Messenger of Allah (ﷺ) wiping over the Khimar and Khuff."