Mishnah for Yevamot 163:1
רבי יהודה לטעמיה דאמר מין במינו לא בטיל
— R. Judah follows his own view; for he stated:<span class="x" onmousemove="('comment',' Zeb. 79a, Men. 22b. ');"><sup>1</sup></span> The law of neutralization takes no effect in homogeneous objects.<span class="x" onmousemove="('comment',' Lit., 'a kind in its kind does not cease to exist'. ');"><sup>2</sup></span> [Had the piece] not been crushed, however, what [would have been the law]? Assumingly that it could not be neutralized! Why. then, was it taught. 'If, however, a piece of a levitically clean sin-offering was mixed up with a hundred pieces of clean and unconsecrated meat … neutralization cannot take place'?<span class="x" onmousemove="('comment',' Thus drawing a distinction between a mixture of consecrated and unconsecrated meat. ');"><sup>3</sup></span>