فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَـٰعِقَةً مِّثْلَ صَـٰعِقَةِ عَادٍ وَثَمُودَ Qur’an Fussilat (41:13)Fain aAAra d oo fuqul an th artukum sa AAiqatan mithla sa AAiqati AA a din wathamood a
This connects with the opening sentence of verse {9} above: "Would you indeed deny Him who has created...", etc.
See note [40] on 2:55 .
For the story of these two ancient tribes, see {7:65-79} and the corresponding notes, in particular [48] and [56]; also {26:123-158}.
See verse 17 below.