Is it permitted to begin a melachah on Erev Shabbat close to nightfall that cannot be completed before Shabbat but will finish on its own on Shabbat?
Synopsis
The Mechaber and all major authorities permit starting a melachah on Erev Shabbat near dark if it will complete itself on Shabbat without further human action. The basis is that the Torah forbids doing melachah on Shabbat by one's hand, but passive completion is permitted. The Aruch HaShulchan provides an extended theoretical justification.
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Discussion
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