Is the turban and the skullcap a recommended practice of worship or a recommended practice of custom?

The Shaykh : And it is important, and I am now yielding the floor to you, that I give a specific example: Many people, from the knowledgeable, let alone the general public, assume that the turban is a recommended practice of worship, but it is not. The turban is exactly like the skullcap; the skullcap might be a loose one, I don't know, or a sewn one, or whatever you are wearing, this is a skullcap; it does not matter if it is like this or like that, if it is shorter or longer. People used to wear, until recently, what is called in the Levant and elsewhere the tarboosh, you know the red tarboosh, and so on. Some people wear the turban without a headband, and some people wear a headband. All of these are customs; it is not said that this person followed the Sunnah and this person contradicted the Sunnah. Why? Because these are from the Sunnah of custom, not from the Sunnah of worship. In the sense that the Messenger (peace and blessings be upon him) used to wear a turban, but the turban existed before the mission of the Messenger (peace and blessings be upon him); it was an Arab custom. So there is no harm in a Muslim wearing it, but it should not be lumped in with the category of worship. This turban that developed in the time of the Turks and became, as is reported from Muhammad 'Abduh, "a turban like a tower and a robe like a sack," this is not from Islam in the least, absolutely not. And for this reason, when we speak of the practical Sunnah, we must mention that it is divided into two categories: the Sunnah of worship, and if a Muslim does this, he is rewarded for it; and the Sunnah of custom, where it does not matter whether he does it or leaves it. Now, please, share what you have.