Reference for Chullin 252:13

יכול אפילו ניקבה

that is,<span class="x" onmousemove="('comment',' According to Rashi the implication is derived from the superfluous 'yod' in the word yitma, shall be unclean. V. however, Shittah Mekubbezeth, n. 9.');">⁶</span>

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