فَارْتَقِبْ يَوْمَ تَأْتِي السَّمَاءُ بِدُخَانٍ مُبِينٍ
10. Then watch for the Day when the sky will bring a visible smoke.
يَغْشَى النَّاسَ ۖ هَٰذَا عَذَابٌ أَلِيمٌ
11. Covering the people; this is a painful torment.