If a grave is found in a mosque and it is not known which came first, do we pray in it?

The questioner : If it is not known which came first, the grave or the mosque?

The Shaykh : If we do not know, the precaution is not to pray in it. This issue falls under the jurisdiction of the government in the country where this grave is located.

Another questioner : Between the mosque and the intention to bury in it.

The Shaykh : To make it a cemetery.

Another questioner : Who? Yes.

The Shaykh : Yes, this is not obligatory, and it contradicts the condition of the reality, because it is a forbidden condition,