Quran 45, Al-Jathiya (Kneeling) ⓘ
45:32And when it was said: Lo! Allah's promise is the truth, and there is no doubt of the Hour's coming, ye said: We know not what the Hour is. We deem it naught but a conjecture, and we are by no means convinced.
وَإِذَا قِيلَ إِنَّ وَعْدَ اللَّهِ حَقٌّ وَالسَّاعَةُ لَا رَيْبَ فِيهَا قُلْتُمْ مَا نَدْرِي مَا السَّاعَةُ إِنْ نَظُنُّ إِلَّا ظَنًّا وَمَا نَحْنُ بِمُسْتَيْقِنِينَ
Al-Jathiya 45