Exodus 21:9
And if he have betrothed her unto his son, he shall deal with her after the manner of daughters.
And if he have betrothed her unto his son,.... Not caring to betroth and marry her himself, as being more suitable in age for his son than for himself;
he shall deal with her after the manner of daughters; as if she was his daughter, and give her a dowry: or the son shall treat her after the manner the daughters of Israel are treated when married, by giving her food, raiment, and the duty of marriage, so Jarchi: or after the manner of the daughters of Israel that are virgins, and who are not sold, as Aben Ezra.