Exodus 21:22

21:22 “If men fight and hit a pregnant woman and her child is born prematurely, but there is no serious injury, he will surely be punished in accordance with what the woman’s husband demands of him, and he will pay what the court decides.

Exodus 28:43

28:43 These must be on Aaron and his sons when they enter to the tent of meeting, or when they approach the altar to minister in the Holy Place, so that they bear no iniquity and die. It is to be a perpetual ordinance for him and for his descendants after him.