Reference for Avodah Zarah 30:5

אלא אמר רב אשי כל היכא דאיכא למיתלא תלינן ואע"ג דמצווה וכל היכא דליכא למיתלי לא תלינן אע"ג דאינו מצווה

Rather R. Ashi said, where there is reason for the assumption [that proper use will be made] we assume it, even though a command is involved, and where there is no reason for such assumption, we do not assume it, even where there is no command involved.

Explore reference for Avodah Zarah 30:5. In-depth commentary and analysis from classical Jewish sources.