Is it obligatory for a traveler to re-exert effort in determining the qiblah for every prayer?

The Shaykh : In the name of Allah, the Most Gracious, the Most Merciful. Praise be to Allah, Lord of the worlds, and may peace and blessings be upon our Prophet Muhammad, and upon his family and all his Companions.

The questioner : What do you say, O Yasser, about a traveler who exerted effort in determining the qiblah for the Zuhr prayer, and then the time for 'Asr arrived? Is he required to re-exert effort, or is he not required to?

The Shaykh : He is required to exert effort again for the 'Asr prayer. Good.

The questioner : I said, regarding the author's statement, does that mean there is another statement? I hope you will tell us the stronger position.

The Shaykh : The author's statement is the weaker position, and the stronger position is that he is required to exert effort.

The questioner : He appeared, he appeared, peace be upon him.

The Shaykh : Unless a cause arises that necessitates exertion, such as doubt or hesitation, for example, in which case he is required to exert effort again. Good.