Numbers 9:14

9:14 If a resident foreigner lives among you and wants to keep the Passover to the Lord, he must do so according to the statute of the Passover, and according to its custom. You must have the same statute for the resident foreigner and for the one who was born in the land.’”

Numbers 15:14

15:14 If a resident foreigner is living with you – or whoever is among you in future generations – and prepares an offering made by fire as a pleasing aroma to the Lord, he must do it the same way you are to do it.