Exodus 12:43-45

American Standard Version

⁴³ And Jehovah said unto Moses and Aaron, This is the ordinance of the passover: there shall no foreigner eat thereof; ⁴⁴ but every man’s servant that is bought for money, when thou hast circumcised him, then shall he eat thereof. ⁴⁵ A sojourner and a hired servant shall not eat thereof.