Rashi on Exodus 30:38/רש"י על שמות ל׳:ל״ח

1להריח בה [WHOSOEVER SHALL MAKE LIKE UNTO THAT] TO SMELL THERETO [SHALL BE CUT OFF] — but you may make some according to these quantities of your own spices for the purpose of selling it to the community (cf. Keritot 5a).