Exodus 12:44

King James 3 - The Literal Traslation

And every man’s slave, a purchase of silver, you shall circumcise him, then he may eat of it.

Cross References

Genesis 17:23

And Abraham took his son Ishmael, and all the ones born of his house, and all that were bought with his silver, every male among the men of the house of Abraham. And he circumcised the flesh of their foreskins in that same day, even as God spoke to him.

Leviticus 22:11

And if a priest buys a person, the purchase of his silver, he shall eat of it; also one born in his house, they shall eat of his bread.