Quran 25:13 — The Statute Book (Al-Furqan)

And when they are thrown into it, through a narrow place, all shackled, they will declare their remorse.

[25:12] When it sees them from afar, they will hear its rage and fuming.

[25:14] You will not declare just a single remorse, on that day; you will suffer through a great number of remorses.