Exodus 30:37

And as for the perfume which thou shalt make, ye shall not make to yourselves according to the composition thereof: it shall be unto thee holy for the Lord.

Cross-reference

Exodus 30:32 forbids making anointing oil for common use — same prohibition applied here to the incense recipe.

Exodus 30:33 applies the same penalty of being cut off for misusing the holy anointing oil — paralleling the prohibition for incense.