Reference for Yevamot 212:6

אמר אביי האי מאן דמקרי גט חליצה לא ליקרי לדידה לא לחודיה ואבה יבמי לחודיה דמשמע אבה יבמי אלא לא אבה יבמי

What does he teach us [by this statement]? This is our very Mishnah! — It is this that he teaches us: The prescribed procedure is such, but if the order was reversed, it does not matter. So it was also taught: Whether the drawing off of the shoe preceded the spitting or whether the spitting preceded the drawing off, the act is valid.<span class="x" onmousemove="('comment',' Lit., 'what he did is done'. Sanh. 49b, supra 105a. ');">²³</span> Abaye ruled: The man who dictates the <i>halizah</i> formulae<span class="x" onmousemove="('comment',' Lit., 'document', 'deed'. ');">²⁴</span> shall not read for the woman [the word] not<span class="x" onmousemove="('comment',' [H]. (Deut. XXV, 7) which is the first word of the formula. ');">²⁵</span> separately and [the clause] he will perform the duty of a husband's brother unto me<span class="x" onmousemove="('comment',' [H] ibid. ');">²⁶</span> separately, since this<span class="x" onmousemove="('comment',' The severance of the latter clause from the negative particle. ');">²⁷</span>

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