Ar-Rahmaan • EN-TAFSIR-IBN-ABBAS
﴿ يَطُوفُونَ بَيْنَهَا وَبَيْنَ حَمِيمٍ ءَانٍۢ ﴾
“between it and [their own] burning-hot despair will they wander to and fro!”
(They go circling round between it) i.e. the Fire (and fierce, boiling water) water as hot as can be.