Halakhah sa Exodo 21:18: Mishneh Torah, One Who Injures a Person or Property, Sefer HaChinukh & Mishneh Torah, Positive Mitzvot

And from where [do we know] that that which it states with regards to limbs, "An eye for an eye," is [to be understood as] payments? Since it is stated about it, "A wound for a wound," and it is explicitly stated, "And when a man strikes his neighbor with a stone or with a fist, etc... he should surely give him his rest and his rehabilitation." Behold, you have learned that "for (tachat)" mentioned with regards to a wound means payments. And this is [also] the case with "for (tachat)" mentioned concerning the eye and concerning the other limbs.

The commandment of the laws of penalties: That we were commanded about the law of one who injures his fellow to penalize that person, as it is written in the Torah in the section of “And if men fight” (Exodus 21:18). And this is called the laws of penalties. And in another verse, it includes all of the laws of penalties, and it is the verse, “as he did, so shall it be done to him” (Leviticus 24:19) — it means to say that what he pained [his fellow] should be taken away from his money, in accordance with that which he injured his fellow, as the tradition comes about it (Bava Kamma 83b). And even if he did not hit him, but only embarrassed him, the court must cause him pain through his money, that he should pay the one embarrassed, according to this amount. And these laws that are called the laws of penalties — for example, the laws of a man [who hurt another] man; an ox, an ox; an animal, a man; a man, an animal — must be judged in a court that has been ordained in the Land of Israel (Bava Kamma 84a).

Not to eat from the meat of an ox that was stoned: Not to eat the meat of an ox that was stoned, even if it was properly slaughtered — once its case is finished, its meat is prohibited. So is it explained in the Mekhilta DeRabbi Yishmael 21:28:2, as it is stated (Exodus 21:28), “and its meat shall not be eaten.” And it is not specifically an ox, but rather any domesticated animal, wild animal or bird, however the Torah stated that which is common.