Reference for Sanhedrin 173:12

דאי להאי גיסא קא שרי חמץ בפסח ואי להאי גיסא קא שרי חמץ בפסח

just as there [the reference is to] a provision which if deliberately transgressed is punished by extinction, whilst if unwittingly, involves a sin offering, so here too. And R. Judah?<span class="x" onmousemove="('comment',' What is his reason? ');">²²</span> — [Scripture states:] According to the Torah which they shall teach thee,<span class="x" onmousemove="('comment',' Deut. Ibid. 11. ');">²³</span>

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