Mishneh Torah — Negative Mitzvot מצוות לא תעשה, Chapter 51
The full Hebrew text of Mishneh Torah, Negative Mitzvot, Chapter 51, with English translation by Maimonides (Rambam).
שלא להושיב עובדי עבודה זרה בארצנו, שנאמר "לא יישבו בארצך" (שמות כג,לג).
Not to allow the worshipers of false gods to settle in our land, as [Exodus 23:33] states: "They shall not settle in your land."