What are the negative effects of magic on the individual and the family, and what is the religious ruling on one who performs it unintentionally?

Magic is real and has an effect on the bewitched, by Allah's decree and destiny. It can cause separation between spouses, and harm the bewitched by disabling some of their organs, and it may even lead to their death, all by Allah's permission, as stated in His Almighty قول: (And they cannot harm anyone thereby except by permission of Allah). As for its effect on the magician in terms of physical harm, nothing is known about that. However, its religious harms are grave, as many scholars consider the magician to be a disbeliever due to his teaching of magic, and they have cited Allah's Almighty قول: (And they did not teach anyone until they had said, "We are only a trial, so do not disbelieve"). The Prophet (peace be upon him) disavowed the magician. Among its harms also is that many scholars rule that the magician should be killed, but this execution is only carried out by the Imam or his deputy.