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What does the Rambam (רמב"ם) mean when defining mefareik as "hu shetzorech ledam" - that one needs the blood? The shiur analyzes seeming contradictions where the Rambam rules one is liable for mefareik even without wanting the blood, like striking someone in anger for nachas ruach.
This advanced shiur provides a detailed analysis of the Talmudic tractate Kesubos focusing on the melacha (prohibited Sabbath labor) of mefareik (extracting/separating). The primary discussion centers on understanding the Rambam (רמב"ם)'s definition and application of this melacha, particularly his formulation "hu shetzorech ledam" (one who needs the blood). The shiur begins by examining the fundamental dispute between Rabbi Yehuda and the Chachamim regarding whether the prohibition of dosh (threshing) applies to "ein dosh ela bgedulei karka" (only things that grow from the ground). This extends to the question of whether mefareik applies to fish, animals, and humans, with the conclusion that all are considered gedulei karka for this purpose.
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Kesubos 5b
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