Negative commandment · Lo Ta’aseh #194 of 613
Not to drink wine used for idolatrous libations
שלא לשתות יין נסך
The verse · Devarim 32:38
אֲשֶׁר חֵלֶב זְבָחֵימוֹ יֹאכֵלוּ יִשְׁתּוּ יֵין נְסִיכָם יָקוּמוּ וְיַעְזְרֻכֶם יְהִי עֲלֵיכֶם סִתְרָה
“those that did eat the fat of their sacrifices, and drank the wine of their drink offerings? let them rise up and help you, and be your protection.”
The Rambam’s words
Not to drink wine used for idolatrous libations, as [Deuteronomy 32:38] states: "...who ate the fat of their sacrifices and drank the wine of their libations."
שלא לשתות יין נסך, שנאמר "אשר חלב זבחימו יאכלו, ישתו יין נסיכם" (דברים לב,לח).
Why · Sefer HaChinuch #111
To not eat and drink a gift to idol worship
“The root of this commandment is revealed and known.”
Who & when
“And this warning (prohibition) is practiced in every place and at all times by males and females.”
Where in the Mishneh Torah
Hilchot Forbidden Foods הלכות מאכלות אסורות