Reference for Yevamot 168:12

גופא אמר רב יהודה אמר רב לא הוזהרו כשרות להנשא לפסולין לימא מסייע ליה חלל שנשא כשרה מאי לאו כהנת [הראויה לו] ומאי כשרה כשרה לכהונה

If this is all that can be pointed out,<span class="x" onmousemove="('comment',' Lit., 'if because of'. ');">²³</span> the case of the man wounded in the stones cannot be regarded as an instance of an omission, since those that are subject to the penalty of negative precepts were [already] mentioned!<span class="x" onmousemove="('comment',' And among these, this case also is included. What proof, then, is there that any cases other than that of R. Dimi were omitted? ');">²⁴</span>

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