As-Saffat 37:63

إِنَّ هَـٰذَا لَهُوَ الْفَوْزُ الْعَظِيمُ

Indeed, this is the great attainment.

لِمِثْلِ هَـٰذَا فَلْيَعْمَلِ الْعَامِلُونَ

For the like of this let the workers [on earth] work.

أَذَٰلِكَ خَيْرٌ نُّزُلًا أَمْ شَجَرَةُ الزَّقُّومِ

Is Paradise a better accommodation or the tree of zaqqum?

إِنَّهَا شَجَرَةٌ تَخْرُجُ فِي أَصْلِ الْجَحِيمِ

Indeed, it is a tree issuing from the bottom of the Hellfire,

طَلْعُهَا كَأَنَّهُ رُءُوسُ الشَّيَاطِينِ

Its emerging fruit as if it was heads of the devils.

فَإِنَّهُمْ لَآكِلُونَ مِنْهَا فَمَالِئُونَ مِنْهَا الْبُطُونَ

And indeed, they will eat from it and fill with it their bellies.