ציטירנדיקער פּירוש אויף דברים 24:3

ונותן לה את הפרה – as he is not able to cut it after it is written, as it is written (Deuteronomy 24:3); “[then this latter man rejects her,] writes her a bill of divorcement, hands it to her [and sends her away from his house;…” which is not requiring other than writing and giving [the Jewish bill of divorce], excluding the situation which is requiring the writing [of the Jewish bill of divorce], cutting it [from where it was written] and giving it [to the woman].

One may write on them gittin, But Rabbi Yose the Galilean declares it unfit. One can write a get on animal, for instance on the horn of a cow, and then divorce one’s wife by giving her the cow (see Gittin 2:3). Rabbi Yose the Galilean says that such a get is invalid because it is not like a scroll, specifically mentioned as the divorce document in Deuteronomy 24:3.

"For her" - as is written, "and write for her" (Deuteronomy 24:3).

“For her” is written twice - [the other time following] "then this latter man rejects her" etc. (Deuteronomy 24:3)