Reference for Zevachim 115:7

דאי ס"ד כולו לעולה כשר השתא כולו לעולה כשר כולו לשלמים מיבעיא

and the whole of it is fit for peace-offerings While R'Jose son of R'Judah holds: Divide it: half of it is for a burnt-offering, and half for a peace-offerin For if you think that the whole of it is fit for a burnt-offering, then seeing that the whole of it is fit for a burnt-offering, need it be said that the whole of it is fit for a peace-offering. And the other?<span class="x" onmousemove="('comment',' How does he rebut this argument?');">⁹</span>

Jastrow