Reference for Chullin 178:17

והתנן

then the Tanna should have said: 'The prohibition of [eating] consecrated meat applies to the nerve too'! - Rather we must say that he is of the opinion that nerves do not impart a taste, [and he thus teaches us<span class="x" onmousemove="('comment',' In stating that the law of the sciatic nerve applies to consecrated animals.');">⁹</span>

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