What is the ruling on going to sorcerers for treatment?

Question : Honorable Shaykh, a questioner from Riyadh says: There is a group of people who treat using folk medicine, according to their own claim. When I went to one of them, he said, "Write down your name and your mother's name, then come back to us tomorrow." When we went back to them, they said, "You are afflicted with such-and-such." One of them, or this healer, says that we use the words of Allah in treatment. What is the ruling of the Shari'ah, in your view, regarding such people, and what is the ruling on going to them? May Allah reward you with good.

Answer : Praise be to Allah, Lord of the worlds, and may Allah send prayers and blessings upon our Prophet Muhammad, and upon his family and his Companions, and upon those who follow them with excellence until the Day of Judgment. Their asking for the mother's name necessitates suspicion and doubt regarding their method of treatment. Therefore, we must discuss these people.
And we ask them: Why do they ask for the mother's name? Why do they not ask for the father's name? Because a person is called by his father, as Allah Blessed and Exalted said: In my view, this question is a cause for suspicion in reality. Therefore, a person must be cautious regarding their matter, and must investigate the extent of the uprightness of these readers, and must discuss with them why they did this, that is, what they claim of these superstitions. Allah knows best. May Allah bless you.