72:17
لِّنَفْتِنَهُمْ فِيهِ ۚ وَمَن يُعْرِضْ عَن ذِكْرِ رَبِّهِۦ يَسْلُكْهُ عَذَابًا صَعَدًا
So We might test them therein. And whoever turns away from the remembrance of his Lord He will put into arduous punishment.
The Jinn
لِّنَفْتِنَهُمْ فِيهِ ۚ وَمَن يُعْرِضْ عَن ذِكْرِ رَبِّهِۦ يَسْلُكْهُ عَذَابًا صَعَدًا
So We might test them therein. And whoever turns away from the remembrance of his Lord He will put into arduous punishment.
Nearby ayahs help place verse 72:17 in sequence and meaning.
وَأَمَّا ٱلْقَـٰسِطُونَ فَكَانُوا۟ لِجَهَنَّمَ حَطَبًا
But as for the unjust, they will be, for Hell, firewood.'
وَأَلَّوِ ٱسْتَقَـٰمُوا۟ عَلَى ٱلطَّرِيقَةِ لَأَسْقَيْنَـٰهُم مَّآءً غَدَقًا
And [Allah revealed] that if they had remained straight on the way, We would have given them abundant provision
وَأَنَّ ٱلْمَسَـٰجِدَ لِلَّهِ فَلَا تَدْعُوا۟ مَعَ ٱللَّهِ أَحَدًا
And [He revealed] that the masjids are for Allah, so do not invoke with Allah anyone.
وَأَنَّهُۥ لَمَّا قَامَ عَبْدُ ٱللَّهِ يَدْعُوهُ كَادُوا۟ يَكُونُونَ عَلَيْهِ لِبَدًا
And that when the Servant of Allah stood up supplicating Him, they almost became about him a compacted mass."