The Command to call on Allah when Calamity strikes, to repel Evil with that which is better, and to seek refuge with Allah

Allah commands His Prophet Muhammad ﷺ to call on Him with this supplication when calamity strikes:

رَّبِّ إِمَّا تُرِيَنِّى مَا يُوعَدُونَ

Commentary

وَهُوَ يُجِيرُ‌ وَلَا يُجَارُ‌ عَلَيْهِ (And who gives protection and no protection can be given against him - 23:88) The meaning of the verse is that Allah alone can deliver a person from pain and suffering as He wills, but there is none who can save a person from divine punishment. This is true of this world because nobody can stop Allah from rewarding virtuous people nor can anyone protect someone whom He chooses to punish. And the same is true of the Hereafter also. (Qurtubi)