What is your advice for the Sufis?

Question:
And another says: I have a brother in Allah outside the Kingdom of Saudi Arabia, and he is one of those who constantly falls into Sufism. So I advised him, for the sake of Allah, the Lord of the Worlds, not to return to this Sufism, several times, with many proofs, but he did not stop. So he answered me by saying, "Are you a scholar?" I said to him, "I am not a scholar, but I have heard from honorable scholars who have advised leaving this." But he wanted to and said to me, "Will you give me evidence for this?" So we leave the leniency in

Answer:
Sufism has sections and types, so it is necessary to clarify the reality in which he fell so that it can be answered. Some of the Sufis worship other than Allah and worship their shaykh and their imam. Some of the Sufis hold to the unity of existence and that opposing Allah is above one thing. Some of the Sufis have many religious innovations (bid'ah) besides that. The point is that Sufism has many types and paths. We ask Allah for safety.