54:38
وَلَقَدْ صَبَّحَهُم بُكْرَةً عَذَابٌۭ مُّسْتَقِرٌّۭ ٣٨
Saheeh International
And there came upon them by morning an abiding punishment.
Tafsir of "Ibn Kathir" (English)
And verily, an abiding torment seized them early in the morning.meaning, a torment that they had no way of escaping or avoiding,فَذُوقُوا عَذَابِي وَنُذُرِ