Is it permissible to assert with certainty that one who dies in a state of disbelief is in the Fire?

The questioner:
May Allah reward you, Honorable Shaykh. This questioner says: If a person dies in a state of disbelief and no repentance is known for him, is it correct to assert with certainty that he is in the Fire?

The Shaykh:
Yes.

The questioner:
He says: If a person dies in a state of disbelief and no repentance is known for him, is it correct to assert with certainty that he is in the Fire, or do we say that his affair is left to Allah?

The Shaykh:
No. If you are certain that he died in a state of disbelief, you assert with certainty that he is among the people of the Fire. But if you are not certain and do not know, perhaps he repented, then leave him alone; do not hold any belief about him; leave his affair to Allah, Glorified and Exalted is He. But if you know that he died in a state of disbelief, then at that time you rule for him that he is among the people of the Fire. Yes.