142 Avodah Zarah 4/1-4

(1) Rabbi Yishmael says: Three stones side by side beside a Markulis [an idol worshiped by placing stones beside it] are prohibited; two [stones] are permitted. And the Sages say: Those that appear to be with it [and which may have fallen from idol] are prohibited, but those that do not appear to be with it are permitted.

(2) If one found on its [the idol's] head money, clothing, or vessels, these are permitted. [If one found there] grape vines, crowns of wheat stalks, wines and oil, or flours, or any type of thing which is brought on the alter, they are prohibited.

(3) An idol that had a garden or a bath house, one can benefit from it without giving payment in return, but one cannot benefit from it if one gives payment in return. If it belonged to an idol and to others, one can benefit from them regardless of whether or not one gives payment in return.

(4) The idol of a non-Jew is automatically prohibited [for benefit]. One belonging to a Jew, is not prohibited until it is worshiped. A non-Jew can nullify his idol and his friend's, but a Jew cannot nullify the idol of a non-Jew. One who nullifies an idol also nullifies its accouterments. If he nullified its accouterments, the accouterments are permitted, but it [the idol] is prohibited.