Surah Al-Haqqah 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.

Translation: Saheeh International

Tafsir

He forced it upon them for seven nights and eight days the first of which was the morning of Wednesday eight days before the end of the month of Shawwāl and this was at the height of winter successively one after the next husūman it the action of the wind is likened to the repeated actions of a hāsim ‘one cauterizing …

Excerpt from Tafsir al-Jalalayn, commentary on 69:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.