Wyjścia 21:11 Halacha: Sefer HaChinukh & Sefer HaMitzvot

And [it] is only practiced at the time that the Jubilee is practiced (Gittin 65a). And one who transgresses it and does not designate her — not for him, and not for his son — and does not help with her redemption, has not performed this commandment. However it appears that we do not coerce him about the fulfillment of this commandment; as behold, it is written there explicitly (Exodus 21:11), “And if he does not do these three to her.” [From here,] it is implied that the Torah left the thing up to his will. But if he married her as a wife or married her to his son, as we have written, he has done what is fitting. And a blessing will come upon him and good and proper children are fitting to come from their union.

The commandment on the court (beit din) to kill with strangulation one who is liable: That we have been commanded to kill the transgressors of some of the commandments of the Torah with strangulation, as it is stated (Exodus 21:12), “He who strikes a man and [that man] dies shall surely be put to death.” And this one of “He who strikes a man” is one of the ones whose death penalty is with strangulation. Since it is written about it, “[he] shall surely die” — and in the explanation, they, may their memory be blessed, said (Sanhedrin 52b), “Any death penalty stated in the Torah undifferentiated is only strangulation.” We have learned that those that are liable for the death penalty do not have repayment, as it is stated (Exodus 21:11–12), “there is no money. He who strikes a man and [that man] dies, etc.” — Mekhilta.

That is that He commanded us to redeem the Hebrew maidservant. And that is His, may He be blessed, saying, "he must let her be redeemed" (Exodus 21:8). This redemption has many analyses and conditions and there are many regulations for it - and they have been explained in Tractate Kiddushin. And the law of the Hebrew maidservant is completely explained there. And in the Mekhilta (Mekhilta d'Rabbi Yishmael 21:11:1) they said in explanation of, "And if these three he does not do to her" (Exodus 21:11), "Designate (marry) [her] yourself, to your son, or redeem her." (See Parashat Mishpatim; Mishneh Torah, Slaves 14.)