[40].Surah Al Mumin (The Believer) also known as Surah Ghafir [The Forgiver]: Ayat 049-050

৪৯. যারা জাহান্নামে আছে, তারা জাহান্নামের রক্ষীদেরকে বলবে, তোমরা তোমাদের পালনকর্তাকে বল, তিনি যেন আমাদের থেকে একদিনের আযাব লাঘব করে দেন।
৫০. রক্ষীরা বলবে, তোমাদের কাছে কি সুস্পষ্ট প্রমাণাদিসহ তোমাদের রসূল আসেননি? তারা বলবে হ্যাঁ। রক্ষীরা বলবে, তবে তোমরাই দোয়া কর। বস্তুতঃ কাফেরদের দোয়া নিস্ফলই হয়। 

Ayat 49. And those in the Fire will say to the keepers (angels) of Hell: "Call upon your Lord to lighten for us the torment for a day!"

Ayat 50. They will say: "Did there not come to you, your Messengers with (clear) evidences and signs? They will say: "Yes." They will reply: "Then call (as you like)! And the invocation of the disbelievers is nothing but in error!"

Tafseer of Surah Al Mumin (The Believer) Ayat 49. Those in the Fire will say to the Keepers of Hell: "Pray to your Lord to lighten us the Penalty for a day (at least)!" Cf. 39:71. The poor misguided ones will turn to the angels who are their Keepers, asking them to pray and intercede for them. But the angels are set there to watch over them, not to intercede for them. In their innocence they ask, 'Did you have no warnings from messengers, men like yourselves, in your past life?' Ayat 50. They will say: "Did there not come to you your messengers with Clear Signs?" They will say, "Yes". They will reply, "Then pray (as ye like)! But the prayer of those without Faith is nothing but (futile wandering) in (mazes of) error!" The answer being in the affirmative, they will have to tell the dreadful truth: 'This is neither the time nor the place for prayer, for mercy! And in any case, Prayer without Faith is Delusion, and must miss its mark.' Cf. 13:14.

Hazrat Samurah bin Jundub (May Allah be pleased with him) reported: Messenger of Allah  [SAWW](PBUH) said, "Among the people of Hell are there those who will be emersed in fire to their ankles, some to their knees, some to their waists, and some to their throats".

[Muslim Book 040, Chapter 12, Hadith # 6815].

Lesson: as mentioned above in Surah Al-Mumin Ayat 49. “And those in the Fire will say to the keepers (angels) of Hell” This Hadith tells us that the inhabitants of Jannah will be classified into different categories and enjoy different kinds of luxuries according to their merits. A similar classification will also be made in the inhabitants of Hell and they will suffer torments according to their misdeeds.