Reference for Niddah 53:29

לא שהשליא ולד אלא שאין שליא שאין ולד עמה דברי רבי מאיר

R. Papa once sat behind R. Bubi in the presence of R. Hamnuna and in the course of the session he observed: What is R. Simeon's reason?<span class="x" onmousemove="('comment',' Sc. granted that the embryo was mashed, does not a mashed corpse convey uncleanness? ');">²⁵</span>

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