What duration makes a knot 'permanent' (shel kiyuma) such that it is at least rabbinically prohibited?
Synopsis
Three views on when a knot crosses from permissible to at least 'patur aval asur': (1) any knot not untied that same day; (2) a knot lasting up to seven days is still not permanent; (3) knots intended to last indefinitely are permanent. These apply within the Rashi/Rosh framework where permanence alone determines liability.
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Discussion
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