Is wearing the turban and what the Messenger of Allah (peace and blessings be upon him) used to wear from clothing part of the Sunnah?

The Shaykh : What remains is what was mentioned at the end of his speech, and that this is not from the Sunnah. It seems the questioner intends that it is established in the Sunnah that the Prophet (peace and blessings be upon him) used to cover his head with this headscarf or that turban. However, it has reached our ears in some of our lessons and comments that we say this is not from the Sunnah—meaning the Sunnah of worship. Likewise, we say that these garments the Messenger (peace be upon him) used to wear are from the custom of the environment and the custom of the Arabs, of whom he (peace and blessings be upon him) was a part. This turban existed before the mission of the Messenger (peace be upon him), indeed before his creation. So when he grew up and matured, he dressed as his people dressed before the prophecy was revealed to him and the message came to him. This is one of the customs. Therefore, we say: there is no difference between one who wears this cap, which the Messenger of Allah (peace and blessings be upon him) used to wear. We do not say that this specific garment is a Sunnah.
Likewise, he sometimes threw the headscarf or turban over the cap. We do not say that combining them is better as a Sunnah. And sometimes he would throw the turban or headscarf directly on the head without the cap as an intermediary. All of this is established from the Prophet (peace and blessings be upon him), but this is from the discretion a person exercises regarding his own person. Perhaps a person, for example, wears a shirt over a shirt, and perhaps in some circumstances adds a third. This has no relation to the aspect of the Shari'ah. This is a long discussion, and I do not want to expand on it because I have spoken about it much. Rather, the summary of the statement is: this clothing—the turban and the cap—is established from the Messenger (peace be upon him), and a person is free in that; if he wishes, he does this or that or something else.