Commentary for Avodah Zarah 71:9
וכי תימא אתא דניאל גזר ולא קיבל ואתו תלמידי דהלל ושמאי וגזור וקיבל א"כ מאי אסהדותיה דרב אלא דניאל גזר עליו בעיר ואתו אינהו וגזור אפילו בשדה
And should you argue that Daniel came and made the decree but it was not accepted, and then the disciples of Hillel and Shammai came and made the decree which was accepted, in that case what was the purpose of Rav’s testimony? Rather, Daniel decreed against the use of the oil in a city, and they came and decreed against its use even in a field.
Daf Shevui to Avodah Zarah
The Talmud resolves the difficulty by suggesting that the decree against oil spread. First it began with a decree against using these products in the city, where the problem of fraternization was greatest. Then a later group of rabbis, perhaps a bit more zealous than Danied, added that using these products is forbidden even outside of the city, even though there is probably little or no concern there for fraternization.
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