Destroying Graves, Mausoleums, And Shrines
There’s no directive for Muslims to destroy shrines, tombs, mausoleums, etc. The key thing is that we should not involve in shirk. To prevent that we can make appropriate arrangements in such places.
I understand the clear prohibition of a masjid from being built over the grave. But what about a mausoleum where any sort of shirk related activities could be prevented? Clearly people won’t be allowed to offer salah inside the mausoleums (that are not masjids) which i am sure most of the people are already aware of. For example, Mazar-e-Quaid & Mazar-e-Iqbal