Qur'ān 41:13 · Fussilat (فصلت)
فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَـٰعِقَةًۭ مِّثْلَ صَـٰعِقَةِ عَادٍۢ وَثَمُودَ
But if they turn away, then say, "I have warned you of a thunderbolt like the thunderbolt [that struck] 'Aad and Thamud.
فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَـٰعِقَةًۭ مِّثْلَ صَـٰعِقَةِ عَادٍۢ وَثَمُودَ
But if they turn away, then say, "I have warned you of a thunderbolt like the thunderbolt [that struck] 'Aad and Thamud.