What is the ruling on placing a substance that aids in the decomposition of corpses in countries where the ground is hard?

Question:
May Allah reward you. The Honorable Shaykh says: Some people place a substance with the deceased when burying him to help it decompose, especially in cemeteries that are in the form of rooms, in countries where the ground is hard, so that the body decomposes quickly, and then others are buried in it. What is the ruling on this action?

Answer:
This action is not permissible. It is not permissible to place a substance with the deceased that decomposes his body. This action is not permissible. The funeral of a Muslim and the body of a Muslim are respected. His sanctity in death is like his sanctity in life. It is not permissible to break his bones or to place with him a substance that crushes his flesh and hastens its decomposition. This is a violation of the sanctity of the Muslim, the sanctity of the deceased. So this action is not permissible. Yes.