How does one who prays the 'Asr prayer in the open desert determine the qiblah?

Question:
May Allah reward you with good. A questioner says: I wanted to pray the 'Asr prayer in the open desert, so how can I determine the qiblah? And what is required of me in this regard? May Allah reward you with good.

Answer:
You must seek evidence for the qiblah by signs, meaning the sun, the moon, and the stars all indicate the direction of the qiblah. You should also ask those around you, if anyone is around you, about the qiblah. The result is that you must exert your effort in knowing the evidence for the qiblah through the sun, the moon, and the stars, and by asking the knowledgeable people who know the qiblah. If you do not have any of these things by which to know the qiblah, and you exerted your effort according to your ability and prayed, then your prayer is valid, even if it turns out afterwards that you were not facing the qiblah, as long as you exerted your effort, did your best, and prayed, and there was no one with you to point you to the qiblah or clear signs. Then your prayer is valid, and praise be to Allah. Yes.