Surah Al-Jathiyah 45:32

وَإِذَا قِيلَ إِنَّ وَعْدَ ٱللَّهِ حَقٌّ وَٱلسَّاعَةُ لَا رَيْبَ فِيهَا قُلْتُم مَّا نَدْرِى مَا ٱلسَّاعَةُ إِن نَّظُنُّ إِلَّا ظَنًّا وَمَا نَحْنُ بِمُسْتَيْقِنِينَ

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.'"

Translation: Saheeh International

Tafsir

And when it was said to you O disbelievers “God’s promise of resurrection is indeed true and there is no doubt about the Hour” read al-sā‘atu or al-sā‘ata you said “We do not know what the Hour is. …

Excerpt from Tafsir al-Jalalayn, commentary on 45:32, via Quran.com. The reader has the full commentary and 9 more tafsirs.