Exodus 12:48-49 NIV

48 "An alien living among you who wants to celebrate the LORD's Passover must have all the males in his household circumcised; then he may take part like one born in the land.1 No uncircumcised2 male may eat of it.

References for Exodus 12:48

49 The same law applies to the native-born and to the alien3 living among you."

References for Exodus 12:49