Reference for Chullin 174:2
רבי יהודה אומר
IT IS TO BE REGARDED AS THOUGH IT WAS WATER'R'JUDAH SAYS, BLOOD CANNOT NEUTRALIZE BLOOD.<span class="x" onmousemove="('comment',' Even if there was only the minutest quantity of the blood of a wild animal mixed with the blood of cattle, the former is not neutralized nor loses its identity in the mixture, but the whole mixture must be covered up; for R. Judah is of the opinion that in a mixture of like kinds one element can never neutralize the other, no matter in what proportion they are to each other.');"><sup>2</sup></span>
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