20. The Fire will be shut over them (i.e. they will be enveloped by the Fire without any opening or window or outlet.[3]
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(V.90:20) "Therein breathing out with deep sighs and roaring will be their portion, and therein they will hear not. **" [The Qur’ân, Verse 21:100]
**Ibn Mas‘ûd رضي الله عنه recited this Verse and then said: "When those (who are destined to remain in the Hell-fire forever) will be thrown in the Hell-fire, each of them will be put in a separate Tabût (Box) of Fire, so that he will not see anyone punished in the Hell-fire except he himself." Then Ibn Mas‘ûd recited this Verse (V.21:100). [Tafsîr Ibn Kathîr, Tabarî and Qurtubî].