SHAFAQNA – The Grand Ayatollah Makarem Shirazi answered a question about the person who joins the Satanism (Satanist) sect.
Question: What is the ruling about the person who joins the Satanism sect?
The Grand Ayatollah Makarem: These are different individuals. If they accept the (Satanist) belief completely which one instance of it is to deny the existence of God and/or God’s indisputable attributes, they are considered as apostates, and if they only accept their instances of indiscipline and promiscuity, they are like animals.
Source: PERSIAN SHAFAQNA