Reference for Zevachim 216:2

תרי ההוא כתיבי

Then what is the purpose of 'unto the Lord'?<span class="x" onmousemove="('comment',' Written in connection with slaughtering.');">³</span> - It is to exclude the goat that is sent away.<span class="x" onmousemove="('comment',' On the Day of Atonement, Lev. XVI, 21. A man is not liable for slaughtering that without, because 'unto the Lord' implies that liability is incurred only when it could be sacrificed, and its rites performed, within.');">⁴</span>

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