Avodah Zarah 5:4-5

Avodah Zara 5:4

If a Jew leaves wine in a wagon or on a ship (in the care of his non-Jewish assistant) and then takes a shortcut to the city, where he uses the bathhouse, the wine is permitted (because his assistant assumes that he could return at any moment). If he told the assistant that he was leaving and he was away long enough for a barrel to be opened, sealed and wiped down (then the wine is prohibited); Rabban Shimon ben Gamliel says it is prohibited only if the Jew is away long enough for a barrel to be opened, its stopper replaced, and its clay seal to dry. If a Jewish proprietor leaves a non-Jew in his shop, even if he comes and goes, the wine is permitted. If he told him that he was leaving and he stayed away for enough time that a barrel could opened, sealed and wiped down (then the wine is prohibited); Rabban Shimon ben Gamliel says it is prohibited only if the Jew is away long enough for a barrel to be opened, its stopper replaced, and its clay seal to dry.

Avodah Zara 5:5

Let’s say that a Jew and a non-Jew were eating together at the Jew’s table. The Jew put one bottle of wine on the table and another one on the sideboard, then he went out and left the non-Jew alone. In such a case, the bottle on the table is prohibited but the one on the sideboard is permitted. If he told the non-Jew to help himself to wine, then even the bottle on the sideboard is prohibited. Open barrels of wine are prohibited; sealed barrels are prohibited if the Jew is away long enough for them to be opened, their stoppers replaced, and their clay seals to dry.