Commentary for Avodah Zarah 66:7
דבי פרזק רופילא אנס הני כובי מפומבדיתא רמא בהו חמרא אהדרינהו ניהלייהו אתו שיילוהו לרב יהודה אמר דבר שאין מכניסו לקיום הוא משכשכן במים והן מותרין
A person from the house of the governor Parzak seized some [earthenware] wine-casks from [Jews in] Pumbedita. He put wine in them and then returned them. [The owners] came to ask Rav Judah about these, and he said: This is a case of vessels taken for temporary use, let them be rinsed with water and they will be permitted for use.
Daf Shevui to Avodah Zarah
Since these wine vessels were not used that much, they may be simply rinsed with water and thereby koshered.
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