Rashi on Deuteronomy 25:8/רש"י על דברים כ״ה:ח׳

1ועמד AND HE SHALL STAND [AND SAY] — He must say this standing (Sifrei Devarim 290:3).

2יאמר AND HE SHALL SAY — in the Holy Language. She, too, has to make her statements in the Holy Language (Yevamot 106b; cf. Sifrei Devarim 291:6).