Is it prescribed to give a sermon at the grave before burial or during it?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Is it prescribed to preach to the people before burying the deceased while waiting for the people to gather for the prayer, or to preach to them during the burial?

Answer:
This is something the Messenger (peace and blessings be upon him) did not do except once for a reason, which was that they found the grave had not been fully prepared. So the Messenger (peace and blessings be upon him) sat down, and his Companions sat around him waiting for the preparation of the grave to be completed, so he preached to them (peace and blessings be upon him).
So if it coincides with a situation like this, there is no harm. They sit, and the preacher and the people sit around him. He does not stand on an elevated platform as a preacher, as some of the young people do. Some of them stand on a grave of someone buried previously and preach to the people. This has no basis.
So if they find the grave prepared and complete, they hasten to bury. They have a state of preaching and a state. The state of preparing the deceased and burying him. They are adding to you to magnify, yes.