Are the durations mentioned in the hadiths, in which the traveler shortened his prayer, the ones by which one must be bound, as it is reported that he (peace and blessings be upon him) shortened his prayer for sixteen days?

The Shaykh : All right, my brothers, you must perform the congregational prayer, except for the one who is traveling... No, this duration is not a specification of the duration, because this duration varies according to people. This is a specific case, as some jurists say, with no general application. For example, our brother came here and intended to stay before these days had passed, so he is a resident. And another man may stay for more than fifteen days and still remain under the ruling of a traveler. So the truth, Abu al-Hasan, is that some of the rulings of travel involve extreme precision. The hadith is authentic in the aggregate of its chains.

The questioner : May Allah reward you with good.