Reference for Chullin 77:27

הוא מותיב לה והוא מפרק לה

Obviously it means a wrongful intention expressed during one service with regard to another service, and the Mishnah is to be interpreted thus: 'If in the case of consecrated animals, where a wrongful intention expressed during one service with regard to another service renders them invalid, it is established that everything depends solely upon the intention of him who performs the service, how much more in the case of unconsecrated animals, where a wrongful intention expressed during one service with regard to another service does not render them invalid, does everything depend solely upon the intention of him who slaughters'! Now the assertion with regard to services performed inside [namely, consecrated animals] contradicts Resh Lakish,<span class="x" onmousemove="('comment',' For the Mishnah asserts that any wrongful intention (not only a piggul intention) in connection with the sacrifice renders it invalid; contra Resh Lakish.');">⁸</span>

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