Exodus 12:44 in the King James Version
But every man’s servant that is bought for money, when thou hast circumcised him, then shall he eat thereof.
Context
43 The LORD said to Moses and Aaron, “This is the ordinance of the Passover. No foreigner shall eat of it,
44 but every man’s servant who is bought for money, when you have circumcised him, then shall he eat of it.
45 A foreigner and a hired servant shall not eat of it.