Those Who Set The Ranks - 37:66 They will fill their bellies by eating from it.
In the context of verses 62, 63...67; They eat from the tree of Zaqqum:
Those Who Set The Ranks/37:62 Is this a better abode or the tree of oleander?
اَذٰلِكَ خَيْرٌ نُزُلاً اَمْ شَجَرَةُ الزَّقُّومِ
Those Who Set The Ranks/37:63 We have made it a test for the wrongdoers.
اِنَّا جَعَلْنَاهَا فِتْنَةً لِلظَّالِم۪ينَ
Those Who Set The Ranks/37:64 It is a tree from the bottom of Hell.
اِنَّهَا شَجَرَةٌ تَخْرُجُ ف۪ٓي اَصْلِ الْجَح۪يمِۙ
Those Who Set The Ranks/37:65 Its buds are like the heads of devils.
طَلْعُهَا كَاَنَّهُ رُؤُ۫سُ الشَّيَاط۪ينِ
Those Who Set The Ranks/37:66 They will fill their bellies by eating from it.
فَاِنَّهُمْ لَاٰكِلُونَ مِنْهَا فَمَالِؤُ۫نَ مِنْهَا الْبُطُونَۜ
Those Who Set The Ranks/37:68 Then their return is to Hell.
ثُمَّ اِنَّ مَرْجِعَهُمْ لَاِلَى الْجَح۪يمِ

The Event/56:51 Then you, O you who have gone astray, O you deniers
ثُمَّ اِنَّكُمْ اَيُّهَا الضَّٓالُّونَ الْمُكَذِّبُونَۙ
The Event/56:52 You will eat of the tree of Zaqqum.
لَاٰكِلُونَ مِنْ شَجَرٍ مِنْ زَقُّومٍۙ
The Event/56:54 And you will drink boiling water on it.
فَشَارِبُونَ عَلَيْهِ مِنَ الْحَم۪يمِۚ
The Event/56:56 This is how they will be entertained on the Day of Judgment.
هٰذَا نُزُلُهُمْ يَوْمَ الدّ۪ينِۜ

The Smoke/44:45 Like concentrated acid and will boil in the stomachs
كَالْمُهْلِۚۛ يَغْل۪ي فِي الْبُطُونِۙ

Prophet Abraham/14:16 Then hell. They will be made to drink tainted water
مِنْ وَرَٓائِه۪ جَهَنَّمُ وَيُسْقٰى مِنْ مَٓاءٍ صَد۪يدٍۙ
Prophet Abraham/14:17 He will try to swallow it, but he will not be able to choke it down. Death will come to him from all sides, but he will not die. And a severe torment will follow.
يَتَجَرَّعُهُ وَلَا يَكَادُ يُس۪يغُهُ وَيَأْت۪يهِ الْمَوْتُ مِنْ كُلِّ مَكَانٍ وَمَا هُوَ بِمَيِّتٍۜ وَمِنْ وَرَٓائِه۪ عَذَابٌ غَل۪يظٌ