Is Everything that Happened During the Time of the Prophet ﷺ Considered Sunnah?

On this occasion, I would like to remind (you) that if something happened during the time of the Prophet ﷺ, in his presence, or it was his action, then all of that only indicates that what happened is permissible. It does not indicate that it is a sunnah that is necessary for the Muslims to make a custom and adhere to. That is because if the matter was like that, the first one to adhere would be the one who explained to us the legislation of that (matter) - and he is the Messenger of Allah ﷺ. Subsequently, it would have been adhered to by the most eager of people in following the Messenger ﷺ; they are the Companions, then those who followed them, then those who followed them.