Study Avodah Zarah folio 73A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
There are those who say that Rabba bar Rav Huna himself drank from a kenishkanin.
Mishnah: Wine used for a libation is forbidden, and any amount of it renders other wine forbidden if they are mixed together. Wine used for a libation that became mixed with wine, or water that was used for an idolatrous libation that became mixed with ordinary water, renders the mixture forbidden
This is the principle: A substance in contact with the same type of substance renders the mixture forbidden with any amount of the forbidden substance, but a substance in contact with a different type of substance renders the mixture forbidden only in a case where it imparts flavor to it.
Talmud: When Rav Dimi came from Eretz Yisrael to Babylonia, he reported that R' Yoḥanan says: In the case of one who pours wine used for a libation from a jug into a wine cistern, even if he does this all day long, the forbidden wine is nullified little by little upon contact with the wine in the
The Talmud raises an objection to the halakha reported by Rav Dimi from that which we learned in the Mishnah: Wine used for a libation is forbidden, and any amount of it renders other wine forbidden. What, is it not referring to a case where the forbidden substance fell into the permitted substance,