23:77
حَتَّىٰٓ إِذَا فَتَحْنَا عَلَيْهِم بَابًۭا ذَا عَذَابٍۢ شَدِيدٍ إِذَا هُمْ فِيهِ مُبْلِسُونَ
Hattaaa izaa fatahnaa 'alaihim baaban zaa 'azaabin shadeedin izaa hum feehi mublisoon
until We opened upon them the door of a severe chastisement. Then lo, in this state they become utterly despaired of any good.
