The ruling on praying in a mosque that contains a grave: is it prohibited absolutely, or is there a distinction?

Question:
He says: Honorable Shaykh, may Allah grant you success, what is the correct position on the issue of praying in a mosque that contains a grave? Is it prohibited absolutely, or is there a distinction such that if the grave is in the direction of the qiblah, the prayer is invalid, but if it is not, the prayer is valid?

Answer:
The Messenger (peace and blessings be upon him) did not say, "Do not face the graves." Rather, he said, "Do not pray at the graves." He prohibited taking graves as mosques. This covers both what is in the direction of the qiblah and what is not. He prohibited praying at the graves. As for his saying, "Do not pray toward the graves," this does not imply a specific restriction, because it is an instance of the general rule, and an instance of the general rule does not restrict it, according to the scholars of usul al-fiqh. Yes, so it is prohibited to pray at the graves, whether the grave is in front of you, to your side, or at the back of the mosque, because this mosque was not built next to the grave except to venerate the grave. Yes.