What is the ruling on one who holds the view of the Hululiyyah and that al-Hallaj is a wali among the awliya (close friends of Allah)?

Question:
The questioner from outside this country says: One of the da'is (preachers) in our country, after Allah granted him the opportunity to study in this blessed land, returned to us and fell into error, becoming one who holds the view of the Hululiyyah. Among his statements is that in an advice he gave to the one speaking before you, he said, "It is not I who is speaking to you, but it is Allah." He also says that al-Hallaj is a wali among the awliya (close friends of Allah). His question is: Does this da'i exit the fold of Islam?

Answer:
Without a doubt, if it reaches this level, and he says that the one speaking to you is Allah and not him, following the path of al-Hallaj who says, "There is nothing in the universe but Allah"—this is the doctrine of al-Hallaj, and this is the doctrine of Wahdat al-Wujud (the Oneness of Existence), which they claim means that Allah is the Lord and the Lord is the servant. Yes.