Al-Muzzammil 73:11

وَاذْكُرِ اسْمَ رَبِّكَ وَتَبَتَّلْ إِلَيْهِ تَبْتِيلًا

And remember the name of your Lord and devote yourself to Him with [complete] devotion.

رَّبُّ الْمَشْرِقِ وَالْمَغْرِبِ لَا إِلَـٰهَ إِلَّا هُوَ فَاتَّخِذْهُ وَكِيلًا

[He is] the Lord of the East and the West; there is no deity except Him, so take Him as Disposer of [your] affairs.

وَاصْبِرْ عَلَىٰ مَا يَقُولُونَ وَاهْجُرْهُمْ هَجْرًا جَمِيلًا

And be patient over what they say and avoid them with gracious avoidance.

إِنَّ لَدَيْنَا أَنكَالًا وَجَحِيمًا

Indeed, with Us [for them] are shackles and burning fire

وَطَعَامًا ذَا غُصَّةٍ وَعَذَابًا أَلِيمًا

And food that chokes and a painful punishment -

يَوْمَ تَرْجُفُ الْأَرْضُ وَالْجِبَالُ وَكَانَتِ الْجِبَالُ كَثِيبًا مَّهِيلًا

On the Day the earth and the mountains will convulse and the mountains will become a heap of sand pouring down.