وَإِذَا قِيلَ إِنَّ وَعْدَ اللَّهِ حَقٌّ وَالسَّاعَةُ لَا رَيْبَ فِيهَا قُلْتُم مَّا نَدْرِي مَا السَّاعَةُ إِن نَّظُنُّ إِلَّا ظَنًّا وَمَا نَحْنُ بِمُسْتَيْقِنِينَ
﴿٣٢﴾
سورة الجاثية
(45/32) And when it was said; verily Allah´s promise is, true, and the Hour! there is no doubt thereof, ye said: we know not what the Hour is, we imagine it naught but an opinion, and we are not convinced.
Surah Al-Jathiya