What is the ruling on praying in a mosque built next to a cemetery?

Question:
Honorable Shaykh, we have one mosque in our city, and there is no other. It is built next to a cemetery. The graves are to its left, in front of it, and to its right, about two or three meters away from it. Between the mosque and these graves is only the wall of the mosque. Even when it was being built, bones of the dead were found in its foundation, and they moved them. Recently, people have differed greatly regarding praying in it. Some said, "We will pray in it on the grounds that there is no other, so that we can maintain the congregational prayer." The others said, "We will not pray in it." The question is: Is it permissible to pray in this mosque? With details, so that Allah may make your answer beneficial. May Allah reward you with good.

Answer:
If the graves are separated from the mosque by a road, a street, or open land between them and the mosque, there is no harm in praying in this mosque. However, if the graves are attached to the wall of the mosque, it is not permissible to pray in this mosque because it is built on the graves. Indeed, the questioner stated that he found graves inside the mosque. This is evidence that the mosque is built on the graves and in the cemetery. This is a mosque in which it is not permissible to pray. It is obligatory that the mosque be moved from this place to another. If it is not moved and they continue to pray in it, do not pray with them. Establish a separate prayer place for yourselves, or another mosque in which to pray, and keep away from praying in this mosque. Yes.