Daf Yomi - Yoma 50 - Partners without a Shove Perutah

The Minchas Chinuch (325) quotes Rashi that whenever a mitzva mandates לכם - it has to be yours, if one owns less than a שוה פרוטה, it is also lacking לכם. He asks that according to that, how will people fulfill the mitzva of ערבה on Sukkos when each stem is valued as less than a שוה פרוטה? (Tell that to our Esrog dealers!!!!) It is answered that Rashi did not intend to say that something can't be yours if you own in it less than a שוה פרוטה. Rashi holds that to be considered a partner with others, you must possess at least a פרוטה. This is evident from a Ritva in Avoda Zara and in Sefer Tal Torah.

A question is asked on this Ritva from a Gemora in Kidushin which states that all of Klal Yisroel were considered partners in one קרבן פסח even though they did not have a שוה פרוטה? Iמ Sefer לב איש, he answers based on a Tosfos on our daf. The Gemora states that the פר of the kohen is not deemed a korban of partners, for the atonement from this korban only hovers over the other kohanim and therefore it is judged to be a korban of an individual (and one can make תמורה from it). Tosfos asks from a Gemora in Zevachim that rules on a korban from two sons who inherited it from their father, that it is considered a קרבן שותפין, even though a יורש only receives atonement in the form of מקופיא - hovering over them? Tosfos answers that when everyone has an equal share in the כפרה, even if it's only a minor one, they are considered partners, however by the פר of the kohen gadol, he is considered the full owner for he receives atonement בקביעותא and therefore the other kohanim are not regarded as partners. This is why all of Klal Yisroel can be considered partners, for they all have an equal share.