The Literal Commandment
When a man offers a sacrifice of peace offerings to the LORD to fulfill a special vow or for a freewill offering, of the herd or of the flock, it must be perfect to be accepted; there shall be no defect in it. Those that are blind or fractured or maimed or having a running sore or eczema or scabs, you shall not offer to the LORD, nor make of them an offering by fire on the altar to the LORD. In respect to an ox or a lamb which has an overgrown or stunted member, you may present it for a freewill offering, but for a vow it will not be accepted. Also anything with its testicles bruised or crushed or torn or cut, you shall not offer to the LORD, or sacrifice in your land, nor shall you accept any such from the hand of a foreigner for offering as the food of your God; for their corruption is in them, they have a defect, they shall not be accepted for you.'"(Leviticus 22:21-25)
The literal commandment is that we should not offer a sacrifice that has its testicles bruised or crushed or torn or cut.