Mishneh Torah — Negative Mitzvot מצוות לא תעשה, Chapter 8
The full Hebrew text of Mishneh Torah, Negative Mitzvot, Chapter 8, with English translation by Maimonides (Rambam).
שלא לעשות מעשה אוב, שנאמר "אל תפנו אל האובות" (ויקרא יט,לא).
Not to perform the deeds associated with an ov, as [Leviticus 19:31] states: "Do not turn to the ovot."