Reference for Yevamot 216:11
מאן תנא אמר רב יהודה אמר רב מאי דכתיב (איכה ה, ד) מימינו בכסף שתינו עצינו במחיר יבאו בשעת הסכנה נתבקשה הלכה זו הרי שיצאה מראשון בגט ומשני במיאון מהו שתחזור לראשון
IS FORBIDDEN TO RETURN TO THE MAN FROM WHOM SHE WAS SEPARATED BY A LETTER OF DIVORCE, BUT IS PERMITTED TO RETURN TO HIM FROM WHOM SHE WAS SEPARATED BY HER EXERCISE OF THE RIGHT OF <i>MI'UN</i>. From this, then, it is evident that the <i>mi'un</i> against his fellow has no power to cancel<span class="x" onmousemove="('comment',' Lit., 'comes and cancels'. ');"><sup>23</sup></span> his own divorce! R. Eleazar replied: There is a break<span class="x" onmousemove="('comment',' V. supra p. 752, n. 7. ');"><sup>24</sup></span> [in our Mishnah]; the one who taught the former<span class="x" onmousemove="('comment',' Lit., 'this'. ');"><sup>25</sup></span>