Or HaChaim on Genesis 27:45/אור החיים על בראשית כ״ז:מ״ה

1 גם שניכם יום אחד. "both of you on the same day." Rebeccah said to Jacob: "even assuming that Esau would die in an act of self defense by you or an act of revenge by a relative of yours this would not give me any satisfaction at all." Rebeccah's concern was only for the life of Jacob; she did not care about Esau at all.