The lack of permissibility for combining prayers due to dust, as there is no evidence for it

Question:
May Allah reward you. Honorable Shaykh, this questioner says: Is it permissible to combine the two prayers because of dust?

Answer:
No, this was not a known practice; it was not known from the Salaf (the earliest generations). Nor even from the later scholars up to our present time.
As for what you have heard from some scholars combining for dust, along with what follows. I have lived through times when severe dust would come and darken the air, and people would not leave their houses until it passed, yet they did not combine the prayers. For the prayer is time-bound, my brothers; it is not permissible to play with it. Except with evidence and a dispensation from the Lawgiver. A person does not play with it according to his own whims and choices; this is not permissible, and this poses a danger to the Muslims. If he were only messing with his own prayer, his sin would be upon himself and the matter would be easier. But since he is messing with the prayer of the Muslims in the mosques, this is not permissible. And it is not permissible for him to leave the imam [to do so], yes.