"Idha ulqu fiha sami'u laha shahiga" (When they are thrown into it, they hear its roaring), meaning: a sound. "Wahiya tafuru" (as it boils over), meaning: it seethes.
﴿إِذَا أُلْقُوا فِيهَا سَمِعُوا لَهَا شهيقا﴾ صَوتا ﴿وَهِي تَفُور﴾ تغلي