Reference for Sotah 59:9

אלמא קסבר אין שני עושה שלישי בחולין

is said of non-holy food which was prepared in the purity of the heave-offering.<span class="x" onmousemove="('comment',' I.e., when a priest took upon himself that even the non-holy food he ate should be in the same state of purity as the heave-offering. But ordinary non-holy food cannot become unclean in the third degree. ');">⁹</span>

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