Ad-Dukhan 44:11

لَا إِلَـٰهَ إِلَّا هُوَ يُحْيِي وَيُمِيتُ ۖ رَبُّكُمْ وَرَبُّ آبَائِكُمُ الْأَوَّلِينَ

There is no deity except Him; He gives life and causes death. [He is] your Lord and the Lord of your first forefathers.

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.

رَّبَّنَا اكْشِفْ عَنَّا الْعَذَابَ إِنَّا مُؤْمِنُونَ

[They will say], "Our Lord, remove from us the torment; indeed, we are believers."

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."