Mesorat%20hashas for Sukkah 85:12
נראה למי דומה דנין דבר שמצותו כל היום מדבר שמצותו כל היום ואל יוכיח דבר שמצותו שעה אחת או כלך לדרך זו דנין דבר שמצותו לדורות מדבר שמצותו לדורות ואל יוכיחו מלואים שאין נוהגין לדורות
Let us then see to what it is more comparable. We should deduce a thing whose performance is a matter of the whole day from a thing whose performance is a matter of the whole day, and let no proof be adduced from something whose performance is only for one moment. Or take it another way: We might deduce a thing which is a mitzvah for future generations from something whose mitzvah is for future generations, but we will not deduce a proof from the preparations which were not for future generations.
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