45 : 32
وَإِذَا قِيلَ إِنَّ وَعۡدَ ٱللَّهِ حَقّٞ وَٱلسَّاعَةُ لَا رَيۡبَ فِيهَا قُلۡتُم مَّا نَدۡرِي مَا ٱلسَّاعَةُ إِن نَّظُنُّ إِلَّا ظَنّٗا وَمَا نَحۡنُ بِمُسۡتَيۡقِنِينَ
Whenever it was said, ‘Allah’s promise is certainly true and there is no doubt about the Hour,’ you said, ‘We do not know what the Hour is; We think it is just an assumption, and we are not convinced.’”