Reference for Yevamot 215:8
ואכתי תיבעי לך דהוה נסיבא מעיקרא או דלמא מיקדשא ת"ש דכלתיה דאבדן אימרוד שדר רבי זוגי דרבנן למיבדקינהו אמרי להו נשי חזו גברייכו דקאתו אמרי להו ניהוו גברייכו דידכו
or even in respect of marriage? And should you find some reason for holding that they differ even in respect of marriage [the question arises whether] the <i>halachah</i> is in agreement with him<span class="x" onmousemove="('comment',' R. Judah; though he is in the minority. ');"><sup>18</sup></span> or not? And if you can find some ground for holding that the <i>halachah</i> is in agreement with him [it may be asked whether only] in respect of marriage or also in respect of betrothal? — Come and hear: Rab Judah stated in the name of Samuel that the <i>halachah</i> is in agreement with R. Judah b. Bathyra;<span class="x" onmousemove="('comment',' In respect of marriage as well as in that of betrothal. ');"><sup>19</sup></span> [since it had to be stated that] the <i>halachah</i> [is so] it may be inferred that they differ.<span class="x" onmousemove="('comment',' Had they all been of the same opinion there would have been no need to make the statement that the halachah agrees with him. ');"><sup>20</sup></span>