Exodus 12:44 KJV
But every man’s servant that is bought for money, when thou hast circumcised him, then shall he eat thereof.
Exodus 12:44, King James Version
In context
43 And the Lord said unto Moses and Aaron, This is the ordinance of the passover: There shall no stranger 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 foreigner and an hired servant shall not eat thereof.