Until when We have opened before them a door of severe punishment, immediately they will be therein in despair.
The Saheeh International Quran Translation
حَتَّىٰٓ إِذَا فَتَحْنَا عَلَيْهِم بَابًا ذَا عَذَابٍ شَدِيدٍ إِذَا هُمْ فِيهِ مُبْلِسُونَUntil when We have opened before them a door of severe punishment, immediately they will be therein in despair.