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One who causes a wound on Shabbat that has no constructive effect but rather is purely destructive in nature has not performed a prohibited labor and is therefore exempt from bringing a sin-offering, how are we to understand the mishna’s ruling that one who slaughtered the Paschal lamb for those who cannot eat it is liable?
What positive outcome did the person who mistakenly slaughters the korban Pesah on Shabbat accomplish? This should be a case of mekalkel – a destructive act – and he should not be obligated to bring the sin-offering!
This leads us to examine the concept of “Mekalkel be-Chabura”