Given the prophethood of Muhammed ﷺ, it is therefore necessary to affirm everything that can be reliably traced back to him. A discussion on revelation.
Since God is the only necessary being, this means that no other being is attributed with His qualities, and He is not attributed a quality that any other being is attributed with.
Since God is a necessary being, while bodies are contingent beings, that which makes bodies contingent cannot apply to God. God is therefore, necessarily distinguished from creation.
Contrary to Sunnies- who believe Allah is incorporeal- the Mujasima believe that God is a body. Proving that the Mujasima are wrong in this belief.