Is it permissible for Muslims to testify that a person is in Paradise?

The student: ...

The Shaykh : By Allah, this is a strong opinion without a doubt, meaning the view adopted by the Shaykh al-Islam is supported by the hadith: And if the Ummah, or the majority of the Ummah, agrees on it, that is sufficient, were it not for the concern regarding an issue: namely, that the people of the misguided sects come to us and say, "We have agreed to testify that so-and-so is in such-and-such a state, and he is the head of an innovation," while they claim to be the people of the truth. However, one can escape this objection by saying: the testimony of these people is not accepted because they are upon falsehood and misguidance, and what is intended is the testimony of the people of the truth.