Reference for Yevamot 51:5

אמר ליה רב הלל לרב אשי והתניא אפי' נתגרשו לא קשיא הא דהואי קטטה הא דלא הואי קטטה

<b><i>GEMARA</i></b>. Only if they<span class="x" onmousemove="('comment',' The wives of the Sage, messenger and witness (cf. supra p. 157, n. 6). ');">¹⁰</span> died<span class="x" onmousemove="('comment',' Lit., 'they died, yes'; only then is it permissible for the husbands to marry the women whom they had helped to obtain permission to marry. ');">¹¹</span> but not if they were divorced.<span class="x" onmousemove="('comment',' It being possible that their action in favour of the women and the subsequent divorces were dictated by the same ulterior motive. ');">¹²</span>

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