المؤمنون — Al-Mu'minun Ayat 77

حَتّٰىٓ اِذَا فَتَحْنَا عَلَيْهِمْ بَابًا ذَا عَذَابٍ شَدِيْدٍ اِذَا هُمْ فِيْهِ مُبْلِسُوْنَ ࣖ

Ḥattā iżā fataḥnā ‘alaihim bāban żā ‘ażābin syadīdin iżā hum fīhi mublisūn(a).

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