﴿ وَيَسْتَعْجِلُونَكَ بِٱلْعَذَابِ ۚ وَلَوْلَآ أَجَلٌۭ مُّسَمًّۭى لَّجَآءَهُمُ ٱلْعَذَابُ وَلَيَأْتِيَنَّهُم بَغْتَةًۭ وَهُمْ لَا يَشْعُرُونَ ﴾

“Now they challenge thee to hasten the coming upon them of [God’s] chastisement: and indeed, had not a term been set [for it by God], that suffering would already have come upon them! But indeed, it will most certainly come upon them of a sudden, and they will be taken unawares.”

(They bid thee) O Muhammad (hasten on the doom (of Allah). And if a term had not been appointed, the doom would assuredly have come unto them) before its due time. (And verily it will come upon them suddenly when they perceive not) its coming down upon them.