77حَتّىٰ إِذا فَتَحنا عَلَيهِم بابًا ذا عَذابٍ شَديدٍ إِذا هُم فيهِ مُبلِسونَA. J. Arberryuntil, when We open against them a door of terrible chastisement, lo, they are sore confounded at it.