﴿ وَلَا يَزَالُ ٱلَّذِينَ كَفَرُوا۟ فِى مِرْيَةٍۢ مِّنْهُ حَتَّىٰ تَأْتِيَهُمُ ٱلسَّاعَةُ بَغْتَةً أَوْ يَأْتِيَهُمْ عَذَابُ يَوْمٍ عَقِيمٍ ﴾

“whereas those who are bent on denying the truth will not cease to be in doubt about Him until the Last Hour comes suddenly upon them and [supreme] suffering befalls them on a Day void of all hope.”

And those who disbelieve will not cease to be in doubt of it that is the Qur’ān — because of what Satan had cast onto the tongue of the Prophet s and what had thereafter been nullified — until the Hour comes upon them unawares that is the Hour of their death or of resurrection comes upon them suddenly or there come upon them the chastisement of a day of desolation ‘aqīm namely the day of Badr which held nothing of good for disbelievers much like a sterile wind rīh ‘aqīm that bears no good; or it means the Day of Resurrection referred to as ‘desolate’ because thereafter there will be no more night.