Exodus 21:19-23

if he gets up and walks around outside on his staff, then he who struck him shall go unpunished; he shall only pay for his loss of time, and shall pay for his care until he is completely healed.

“And if someone strikes his male or female slave with a rod and the slave dies at his hand, he shall be punished.

If, however, the slave survives a day or two, no vengeance shall be taken; for the slave is his property.

“Now if people struggle with each other and strike a pregnant woman so that she gives birth prematurely, but there is no injury, the guilty person shall certainly be fined as the woman’s husband may demand of him, and he shall pay as the judges decide.

But if there is any further injury, then you shall appoint as a penalty life for life,