The Ruling on Killing a Sorcerer by Treachery and the Obligation of Referring Him to the Authority

Question:
I have a relative who practices sorcery, and he has used it against us and our family. What do you advise us to do? Is it permissible for us to kill him by treachery without informing the authorities?

Answer:
This is not permissible to endorse, nor is it permissible to leave it alone, even if the person is a relative. You will not find a people who believe in Allah and the Last Day loving those who oppose Allah and His Messenger, even if they are their fathers or their sons or their brothers or their kindred. And among the greatest forms of opposition to Allah the Exalted is sorcery, so it is not permissible to endorse it.
But it is not permissible for you to kill him. You must refer the matter to the authority, meaning you must bring it to the attention of the authority, the head of the committee, the head of the center, the head of the court, or the judge in the court, so that he can summon him and question him. If it is established that he is a sorcerer, the hadd (fixed punishment) is carried out against him. The hadd is carried out by the ruler. The judge rules with the hadd, and the ruler is the one who executes the legal ruling. As for the general public, it is not permissible for them to carry out the hudud (fixed punishments), killing people and saying, "These are apostates, these are sorcerers." This is not permissible. It means chaos would spread and security would be disrupted, with everyone wanting to kill someone, claiming he is a sorcerer or an apostate. This is not permissible. Or, as a condition, you must present the case to the Shari'ah court. The Shari'ah court examines the evidence. If there are witnesses against him or a necessary confession, then a legal ruling is issued against him.