Reference for Zevachim 20:12

שכן מכפרת על חייבי כריתות

it is' is stated of it only after the burning of the emurim prescribed], and yet if the emurim were not burnt at all it is valid.<span class="x" onmousemove="('comment',' Obviously then 'it is' cannot have the same implication here. V. supra 5b.');">⁷</span>

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