﴿ وَلَئِنْ أَخَّرْنَا عَنْهُمُ ٱلْعَذَابَ إِلَىٰٓ أُمَّةٍۢ مَّعْدُودَةٍۢ لَّيَقُولُنَّ مَا يَحْبِسُهُۥٓ ۗ أَلَا يَوْمَ يَأْتِيهِمْ لَيْسَ مَصْرُوفًا عَنْهُمْ وَحَاقَ بِهِم مَّا كَانُوا۟ بِهِۦ يَسْتَهْزِءُونَ ﴾

“And thus it is: if We defer their suffering until a time-limit set [by Us], they are sure to say, "What is preventing it [from coming now]?" Oh, verily, on the Day when it befalls them there will be nothing to avert it from them; and they shall be overwhelmed by the very thing which they were wont to deride.”

And if we postpone the chastisement for them until the arrival of a reckoned time reckoned moments they will surely say in mockery ‘What is detaining it?’ what is preventing it from being sent down? God exalted be He says Verily on the day when it comes to them it cannot be averted warded off from them and that chastisement which they derided shall surround them it shall come down upon them.