Reference for Chullin 29:11

לא סלקא דעתך דקתני דומיא דיום הכפורים מה יום הכפורים לא שנא בשוגג ולא שנא במזיד לא אכיל אף הכא נמי לא שנא בשוגג ולא שנא במזיד לא אכיל

says: If inadvertently, it may be eaten after the termination of the Sabbath by others only but not by himself, but if deliberately, it may never be eaten, neither by him nor by others.<span class="x" onmousemove="('comment',' It is suggested that in our Mishnah the slaughtering was done inadvertently, nevertheless the animal is permitted to be eaten only after the Sabbath, thus being entirely in agreement with R. Judah's view.');">⁹</span>

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