Reference for Yevamot 219:12
חרשת מעיקרא כי היכי דעל הכי נפק פקחת ואחר כך נתחרשה לא דמעכבא בה קרייה
may be said to apply even to <i>halizah</i>; one<span class="x" onmousemove="('comment',' Lit., 'here'; our Mishnah which allows halizah in respect of a deaf woman. ');"><sup>48</sup></span> referring to a woman who was originally deaf,<span class="x" onmousemove="('comment',' Even before her marriage. ');"><sup>49</sup></span> and the other<span class="x" onmousemove="('comment',' The Mishnah supra 104b which rules the halizah of a deaf woman to be invalid. ');"><sup>50</sup></span> referring to a woman who was possessed of hearing<span class="x" onmousemove="('comment',' At the time she married. ');"><sup>51</sup></span> and became deaf afterwards. The 'woman who was originally deaf', leaves<span class="x" onmousemove="('comment',' The levir by means of halizah. ');"><sup>52</sup></span>