Reference for Nedarim 48:3
<big><strong>מתני׳</strong></big> נדרי הבאי אמר קונם אם לא ראיתי בדרך הזה כעולי מצרים אם לא ראיתי נחש כקורת בית הבד
— Come and hear: For R. Huna said: The <i>halachah</i> is like R. Eliezer b. Jacob.<span class="x" onmousemove="('comment',' Ran: The answerer knew that R. Huna referred to the first too, or assumed that he would be referring to the Mishnah, which was well known by all, rather than the Baraitha, which was not so well known. Alternatively, the whole point of the question whether the Rabbis disagree is to know the correct halachah, for since they are in the majority it may not be as R. Eliezer b. Jacob. Now, however, that R. Huna gave his ruling that the halachah is as R. Eliezer b. Jacob in the whole matter, it makes no difference whether the Rabbis disagree with him or not. ');"><sup>3</sup></span>