Exodus Chapter 13, Verse 13

13: And every firstling of an ass thou shalt redeem with a lamb; and if thou wilt not redeem it, then thou shalt break his neck: and all the firstborn of man among thy children shalt thou redeem.- edit KJV text
13: The firstborn of an ass thou shalt change for a sheep: and if thou do not redeem it, thou shalt kill it. And every firstborn of men thou shalt redeem with a price.— edit Douay text
13: Every [offspring] opening the womb of the ass thou shalt change for a sheep; and if thou wilt not change it, thou shalt redeem it: every first-born of man of thy sons shalt thou redeem.— edit LXX text