وَلَا يَزَالُ الَّذِينَ كَفَرُوا فِي مِرْيَةٍ مِّنْهُ حَتَّىٰ تَأْتِيَهُمُ السَّاعَةُ بَغْتَةً أَوْ يَأْتِيَهُمْ عَذَابُ يَوْمٍ عَقِيمٍ (55)
(22:55) Yet the disbelievers will always remain in doubt about it until the Hour of Resurrection overtakes them suddenly or the scourge of a "barren" day *102 descends upon them.
*102) The epithet "barren" has been applied to the "day" in its metaphorical and not literal sense. :A "day" is barren if all the plans, hopes and devices remain unproductive in it, or it dces not bring forth its night. For instance, the days on which the people of Prophet Noah, the tribes of `Ad and _Thamud, the people of Lot and of Midian met with their destruction by scourge from Allah, were barren days in this sense, because those days did not bring forth any "tomorrow" for them, and no device of theirs could avert their doom.