Al-Muzzammil 73:7

أَوْ زِدْ عَلَيْهِ وَرَتِّلِ الْقُرْآنَ تَرْتِيلًا

Or add to it, and recite the Qur'an with measured recitation.

إِنَّا سَنُلْقِي عَلَيْكَ قَوْلًا ثَقِيلًا

Indeed, We will cast upon you a heavy word.

إِنَّ نَاشِئَةَ اللَّيْلِ هِيَ أَشَدُّ وَطْئًا وَأَقْوَمُ قِيلًا

Indeed, the hours of the night are more effective for concurrence [of heart and tongue] and more suitable for words.

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.