Commentary for Avodah Zarah 129:16

Aha’s father used to sell kosher wine to non-Jews in jugs. He would pour the wine into wine-skins that belonged to the non-Jews. He would then carry the wine-skins across the ford. His payment was keeping the jugs that held the wine before he sold it to the non-Jews. The question is does this count as transporting yayin nesekh?
Abaye allowed this because when he was carrying the wine it had not yet become yayin nesekh.