Combining and shortening prayers for those residing in the desert for a long period

Question:
Honorable Shaykh, this person asks and says: We are in the desert during the winter days. Is it valid for us to combine and shorten our prayers, even though we travel a distance of one hundred and eighty kilometers?

Answer:
If you are staying and remaining in this place for a long period, more than four days, then it is not permissible for you to shorten or combine prayers. It is not permissible for you to shorten or combine, nor to perform dry ablution (tayammum) if you have water or if water is near you. You must seek water in your camp and in its vicinity, and with guidance; because tayammum is only prescribed when water is absent, so if you did not find water, then perform tayammum. Yes.