Shaykh Ibn ‘Uthaymeen was asked: Is Hell eternal or will it come to an end?
He replied:
"What is definite is that it is eternal, and no other view is known among the salaf. Hence the scholars made this one of their tenets of faith, so that we believe that Hell is eternal and will last forever. This is a matter concerning which there is no doubt, because Allaah has mentioned the eternal nature of Hell in three places in the Qur’aan:
1 – In Soorat al-Nisa, where He says (interpretation of the meaning):
“Verily, those who disbelieve and did wrong [by concealing the truth about Prophet Muhammad and his message of true Islamic Monotheism written in the Tawraatt (Torah) and the Injeel (Gospel) with them]; Allaah will not forgive them, nor will He guide them to any way.
Except the way of Hell, to dwell therein forever”
[al-Nisa’ 4:168-169]
2 – In Soorat al-Ahzaab, where He says (interpretation of the meaning):
“Verily, Allaah has cursed the disbelievers, and has prepared for them a flaming Fire (Hell)
Wherein they will abide for ever”
[al-Ahzaab 33:64]
3 – In Soorat al-Jinn, where He says (interpretation of the meaning):
“and whosoever disobeys Allaah and His Messenger, then verily, for him is the fire of Hell, he shall dwell therein forever”
[al-Jinn 72:23]
There is a great deal of evidence in the Qur’aan and Sunnah to show that Hell will never cease to exist, and that the kaafireen will abide in Hell forever and will never come out of it. Allaah says (interpretation of the meaning):
“This, because you took the Revelations of Allaah (this Qur’aan) in mockery, and the life of the world deceived you. So this Day, they shall not be taken out from there (Hell), nor shall they be returned to the worldly life (so that they repent to Allaah, and beg His Pardon for their sins)”
[al-Jaathiyah 45:35]"