Surah Al-Jathiyah — Ayah 32 (45:32)
وَإِذَا قِيلَ إِنَّ وَعۡدَ ٱللَّهِ حَقّٞ وَٱلسَّاعَةُ لَا رَيۡبَ فِيهَا قُلۡتُم مَّا نَدۡرِي مَا ٱلسَّاعَةُ إِن نَّظُنُّ إِلَّا ظَنّٗا وَمَا نَحۡنُ بِمُسۡتَيۡقِنِينَ ٣٢
English translation (Saheeh International)
And when it was said, 'Indeed, the promise of Allāh is truth and the Hour [is coming] - no doubt about it,' you said, 'We know not what is the Hour. We assume only assumption, and we are not convinced.'"
Brief commentary
When it is said to you: “Allah’s promise, in which He has promised His servants He will resurrect them and reward them, is true without doubt, and the Hour is true without doubt, so work for it”, you say: “We do not know what this Hour is. We only assume doubtfully that it is coming and we are not convinced it will come”.