سَخَّرَهَا عَلَيۡهِمۡ سَبۡعَ لَيَالٍ وَّثَمٰنِيَةَ اَيَّامٍۙ حُسُوۡمًا فَتَرَي الۡقَوۡمَ فِيۡهَا صَرۡعٰيۙ كَاَنَّهُمۡ اَعۡجَازُ نَخۡلٍ خَاوِيَةٍۚ‏

Which Allah imposed upon them for seven nights and eight days in succession, so you would see the people therein fallen as if they were hollow trunks of palm trees