Dealing with one who died while calling upon other than Allah

Question:
I ask Allah for you. If a person is in a state of Islam, but there is no certainty regarding his residence, is he forbidden from entering Paradise or the Fire? Is he prayed over, and is he buried in the graves of the Muslims?

Answer:
If he dies upon shirk (associating partners with Allah), and it is heard that he calls upon other than Allah or prostrates to other than Allah, and he dies upon this, we treat him as we treat disbelievers in this world. As for his ruling with Allah, we refer that to Allah (Glorified and Exalted is He). But we deal with him based on what appears to us. So we do not handle his funeral, we do not bury him in the graves of the Muslims, and his Muslim relatives do not inherit from him. Rather, based on the apparent, we judge him by the apparent. As for his ruling in the Hereafter, and whether he is among the people of Paradise or among the people of the Fire, that is with Allah.