Subsequently, when we requited them with the severe retribution they had incurred, they were shocked.
حَتّىٰ إِذا فَتَحنا عَلَيهِم بابًا ذا عَذابٍ شَديدٍ إِذا هُم فيهِ مُبلِسونَ
hattaaa izaa fatahnaa ‘alaihim baaban zaa ‘azaabin shadeedin izaa hum feehi mublisoon