Al-Hajj 22:55

وَلَا يَزَالُ ٱلَّذِينَ كَفَرُوا۟ فِى مِرْيَةٍ مِّنْهُ حَتَّىٰ تَأْتِيَهُمُ ٱلسَّاعَةُ بَغْتَةً أَوْ يَأْتِيَهُمْ عَذَابُ يَوْمٍ عَقِيمٍ

Walā yazālu alladhīna kafarū fī mir'yatin min'hu ḥattā tatiyahumu l-sāʿatu baghtatan aw yatiyahum ʿadhābu yawmin ʿaqīmin

But those who disbelieve will not cease to be in doubt of it until the Hour comes upon them unexpectedly or there comes to them the punishment of a barren Day.