Is the prayer valid in a mosque that has a grave in its courtyard or attached to it?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Is it permissible to pray in a mosque that has a grave in it, but the grave is not inside the mosque, rather in the mosque's courtyard?

Answer:
If the grave is attached to the mosque, then prayer in it is not permissible. As for if the grave is separated, or the cemetery is separated from the mosque by a street or an open space, then there is nothing wrong with that. As for a grave or graves attached to the mosque from the front, the back, or the side, then prayer in it is not permissible. Yes.