41:13
Fussilat 13
Surah Fussilat (فصلت), verse 13 — reference 41:13. Arabic text with optional translation and free audio on Al-Qalam.
فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَـٰعِقَةً مِّثْلَ صَـٰعِقَةِ عَادٍ وَثَمُودَ
fa-in aʿraḍū faqul andhartukum ṣāʿiqatan mith'la ṣāʿiqati ʿādin wathamūda
But if they turn away, then say, "I have warned you of a thunderbolt like the thunderbolt [that struck] ʿAad and Thamūd.