Комментарий к Берешит 24:57

ונשאלה את פיה AND ASK HER MOUTH — From this we may infer that a woman should not be given in marriage except with her own consent (Genesis Rabbah 60:12).

נקרא לנערה, to find out if she wants to delay her move to your master’s country by a year or ten months, or if she wants to go now as you have said.

ונשאלה את פיה, if she is willing and able to travel with you at this time.

ויאמרו נקרא לנערה, they suggested to ask Rivkah in Eliezer’s presence, for if they would speak to her only privately Eliezer might interpret a negative response by Rivkah as being the result of family pressure on her to remain for a while.

ויאמרו: נקרא לנערה, “They said: ‘let us call the girl herself and ask her.” This was a challenge to Eliezer who had represented her as already having agreed to come with him. Hence they asked her openly: “do you really want to go with this man?” Alternately, the question posed to Rivkah meant: “do you prefer to travel with this man, or would you prefer that one of us comes with you to the land of Canaan?” Her answer when she said; “I will go,” meant that she considered the man as trustworthy and that it would be unfair to delay him on account of the expensive jewelry she had already accepted from him.”

From here [it is derived], that a woman may not be given in marriage unless it is with her consent. Rashi is answering the question: They said before (v. 50), “We cannot say anything to you, bad or good,” as it is clearly ordained by Hashem. [Why then did they now need to ask her?]

ונשאלה את פיה, they would ask her if she wanted to go with Eliezer at this time. From verse 51 it is clear that basically it had been settled that Rivkah would marry Yitzchok, and the family would not have said “here Rivkah is before you take her and go,” unless they had first secured Rivkah’s willingness to marry Yitzchok. It is forbidden to force marriage on anyone. According to Kidushin 41, a father may not make use of the right to marry off his daughter, the minor, unless she is old enough to understand the implication of giving her own consent, by saying: “I want to marry so and so.”

את פיה, a reference to her wishes just as in Joshua 9,14 ואת פי ה' לא שאלו, “they had not asked G’d about His wishes in the matter.”