Mishneh Torah — Negative Mitzvot מצוות לא תעשה, Chapter 34
The full Hebrew text of Mishneh Torah, Negative Mitzvot, Chapter 34, with English translation by Maimonides (Rambam).
שלא לכשף, שנאמר "לא יימצא בך . . . ומכשף" (דברים יח,י).
Not to practice sorcery, as [Deuteronomy 18:10] states: "There shall not be found among you... a sorcerer."