Surah Fussilat 41:13 — سُورَةُ فُصِّلَتۡ

فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَٰعِقَةًۭ مِّثْلَ صَٰعِقَةِ عَادٍۢ وَثَمُودَ ﴿13﴾

But if they turn away, then say: I warn you of a thunderbolt like the thunderbolt (which fell of old upon the tribes) of A'ad and Thamud;

Surah Fussilat (Explained in detail), ayah 13 of 54. Recited by Ahmed ibn Ali al-Ajamy (أحمد بن علي العجمي).