What is the ruling on praying in a mosque that has graves in its courtyard, and praying in a mosque that has graves inside it?

The Shaykh : The fourth question asks: What is the ruling on praying in a mosque that has graves in its courtyard, and praying in a mosque that has graves inside it?
Answer: There is no difference between the two mosques; whether the grave is in the mosque’s open area and courtyard, or inside the mosque or its sacred precinct, in both cases the grave is in the mosque, because the mosque’s courtyard is part of the mosque. Therefore, it is not permissible—as Ibn al-Qayyim (may Allah have mercy on him) said—for a grave and a mosque to coexist in the religion of Islam. And if the mosque’s courtyard is part of the mosque, then there is no difference at that point whether the grave is in that courtyard or in the mosque itself; all of this is covered by the narrations regarding the prohibition of building mosques over graves, which are recorded for me in my book, “Warning the Worshipper from Taking Graves as Mosques.”