Surah Al-Mu'minun Verse 77

حَتَّىٰ إِذَا فَتَحْنَا عَلَيْهِمْ بَابًا ذَا عَذَابٍ شَدِيدٍ إِذَا هُمْ فِيهِ مُبْلِسُونَ

Until when We have opened before them a door of severe punishment, immediately they will be therein in despair