The Prophets - 21:97
"The fulfillment of the Word of truth has come near, and the eyes of the disbelievers have been filled with fear: "Woe to us, we were heedless of this, we were indeed the wrongdoers."
The true word; The hour/end of the world:
The Kneeling/45:32
"When they were told that the Word of Allah is a truth and that the Hour is an inevitable event, you used to say: "We do not know what the Hour is, we only have various conjectures and we have no certain knowledge about it"."
وَاِذَا ق۪يلَ اِنَّ وَعْدَ اللّٰهِ حَقٌّ وَالسَّاعَةُ لَا رَيْبَ ف۪يهَا قُلْتُمْ مَا نَدْر۪ي مَا السَّاعَةُۙ اِنْ نَظُنُّ اِلَّا ظَناًّ وَمَا نَحْنُ بِمُسْتَيْقِن۪ينَ