Reference for Bekhorot 68:29

הכא מאי

But if you say that it means 'And then he shall become clean' of what avail is it that he is not unclean from the second plague, if he remains unclean by reason of the first plague?<span class="x" onmousemove="('comment',' Of what use is it that we wait in connection with the second plague, not allowing the priest to examine it, seeing that he is not clean from the first plague until the second is healed?');">¹⁵</span>

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