הלכה על בבא קמא 168:1

Its laws are, for example, what are the places in which one is liable for the tooth and the foot and what are the ones in which one is not liable for them (Bava Kamma 24b); the difference in the law if it eats what is fitting for it to eat or it eats something not fitting, and so [too,] that which is fitting under duress - for example a cow that ate barley, a donkey that ate vetch or fish, a pig that ate meat, a dog that licked oil or a cat that ate dates - that if it derived benefit, it pays according to what it benefited. And the rest of its details - are in Gittin and in [Bava] Kamma. And there in the chapter [entitled] Hachovel (Bava Kamma 84b), they said that that which Rava said that we collect, with an ox against an ox, for the tooth or the foot, is with those that are muad from the beginning (see Tur, Choshen Mishpat 399-406).