How Is Hell A Place For Purification?
People who are not clearly deserving of Jannah purely through their deeds, since their deeds are all mixed up, they will be subject to Allah’s decision who will purify them either through his mercy (forgiveness) or through some form of punishment . This can also be inferred from Quran 2:174 and Quran 3:77 . It is the former category for whom the concept of intercession will apply and it is the latter category who will be taken out of Hell once they complete their term of punishment. Please also refer to the following responses of Ghamidi Sahab : Discussion 38044 • Reply 38052 Discussion 38044 • Reply 38054 Discussion 10437 • Reply 13674
Jazakallah Brother Umer.