Reference for Yevamot 211:7

בת חמוה דרב פפא נפלה לפני יבם שאין הגון לה אתא לקמיה דאביי אמר ליה חלוץ לה ובכך אתה כונסה אמר ליה רב פפא לא סבר לה מר להא דאמר רבי יוחנן ואלא היכי אימא ליה

'Do you not like him then?' he asked the woman.<span class="x" onmousemove="('comment',' The sister-in-law. ');">¹⁸</span> 'No', she replied. 'Submit to her halizah', [the Rabbi] said to [the levir], 'and you will thereby wed her'. After the latter had submitted to <i>halizah</i> at her hands he said to him, 'Now she is ineligible to marry you; submit again to a proper <i>halizah</i> that she may be permitted to marry a stranger'. A daughter of R. Papa's father-in-law fell to the lot of a levir who was unworthy of her.<span class="x" onmousemove="('comment',' But who insisted on contracting with her the levirate marriage. ');">¹⁹</span>

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