TT #709 · Parashas Ki Seitzei · Seventh Aliyah · Passuk 25:07
And if the man does not desire to take his yevamah, then his yevamah shall go up to the gate to the elders and say: “My husband’s brother refuses to establish a name for his brother in Israel; he will not perform the duty of a husband’s brother for me.”
Torah Temimah points to Yevamot / Sifrei.
TT lemma: מֵאֵן יְבָמִי.
מֵאֵן יְבָמִי לְהָקִים לְאָחִיו שֵׁם בְּיִשְׂרָאֵל – לֹא אָבָה יַבְּמִי.
English: “My husband’s brother refuses to establish a name for his brother in Israel; he will not perform the duty of a husband’s brother for me.”
On the daf / in context: The formula places the refusal on the yavam and states the purpose that is being frustrated.
The statutory declaration of the yevamah.
The yevamah’s declaration publicly records the yavam’s refusal to perform yibbum.