Using the Verse of the Cave as Evidence for Building Mosques on Graves

Question:
Honorable Shaykh, may Allah grant you success, the verse in Surat al-Kahf says: Is it permissible to use it as evidence for turning the graves of the righteous into mosques?

Answer:
No, it is the rulers who have authority who built on them, and this has existed in every age: no one builds on graves except people who have authority and power, otherwise the people of good would not approve of it, but they have no authority or power to prevent it. So this falls under the category of sin, as it is said of those who were overcome by their affair; this is a sin for them, yes.