Qur'an 69:7

سَخَّرَهَا عَلَيْهِمْ سَبْعَ لَيَالٍ وَثَمَـٰنِيَةَ أَيَّامٍ حُسُومًا فَتَرَى ٱلْقَوْمَ فِيهَا صَرْعَىٰ كَأَنَّهُمْ أَعْجَازُ نَخْلٍ خَاوِيَةٍ

“Which He [i.e., Allāh] 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.”

Al-Haaqqa 69:7 · Saheeh International