13فَإِن أَعرَضوا فَقُل أَنذَرتُكُم صاعِقَةً مِثلَ صاعِقَةِ عادٍ وَثَمودَ(Irfan-ul-Quran)Then if they turn away, say: ‘I warn you of that terrible torment like the destruction of ‘Ad and Thamud.’