Reference for Menachot 46:2

אלא אליבא דרבי חייא דתני רבי חייא נבילה ושחוטה בטילות זו בזו

And whose view does R'Hiyya follow? It cannot be that of the Rabbis, for they have said that only things which are offered up do not neutralize one another, but in a mixture of like kinds neutralization takes effect.<span class="x" onmousemove="('comment',' Whereas R. Hiyya holds that neutralization does take place in a mixture of nebelah meat and slaughtered meat, even though only in one case, v. prec. n.');">³</span>

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