Ad-Dukhan 44:12

بَلْ هُمْ فِي شَكٍّ يَلْعَبُونَ

But they are in doubt, amusing themselves.

فَارْتَقِبْ يَوْمَ تَأْتِي السَّمَاءُ بِدُخَانٍ مُّبِينٍ

Then watch for the Day when the sky will bring a visible smoke.

يَغْشَى النَّاسَ ۖ هَـٰذَا عَذَابٌ أَلِيمٌ

Covering the people; this is a painful torment.

أَنَّىٰ لَهُمُ الذِّكْرَىٰ وَقَدْ جَاءَهُمْ رَسُولٌ مُّبِينٌ

How will there be for them a reminder [at that time]? And there had come to them a clear Messenger.

ثُمَّ تَوَلَّوْا عَنْهُ وَقَالُوا مُعَلَّمٌ مَّجْنُونٌ

Then they turned away from him and said, "[He was] taught [and is] a madman."

إِنَّا كَاشِفُو الْعَذَابِ قَلِيلًا ۚ إِنَّكُمْ عَائِدُونَ

Indeed, We will remove the torment for a little. Indeed, you [disbelievers] will return [to disbelief].