يَسْتَعْجِلُ بِهَا الَّذِينَ لَا يُؤْمِنُونَ بِهَا وَالَّذِينَ آمَنُوا مُشْفِقُونَ مِنْهَا وَيَعْلَمُونَ أَنَّهَا الْحَقُّ أَلَا إِنَّ الَّذِينَ يُمَارُونَ فِي السَّاعَةِ لَفِي ضَلَالٍ بَعِيدٍ
Those who do not believe in it ask [you] to hasten it, but those who have faith are apprehensive of it, and know that it is true. Indeed those who are in doubt about the Hour are in extreme error!
Agha Ali Puya Commentary
Commentary on Quran 42:18
[Pooya/Ali Commentary 42:18] The disbelievers do not believe in the day of reckoning and laugh at it. They say defiantly: "If there is to be a punishment, let it come at once." One day they shall certainly know how far they strayed from the right path. Refer to Yunus: 19 and Rad: 6.