הלכה על מכות 33:13

To not eat lower-level consecrated foods (kodashim kalim) before the sprinkling of the bloods: To not eat anything from the lower-level consecrated foods before the sprinkling of the bloods. And lower-level consecrated foods are like the thanksgiving offering and the peace-offerings and that which is similar to them, from those that are enumerated in the fifth chapter of Tractate Zevachim 48. And about this is it stated (Deuteronomy 12:17), "You may not eat in your gates, etc. and your promises" - the understanding of which is as if it stated, "You may not eat your promises." And the masters of the tradition, may their memory be blessed, said (Makkot 17a), "The verse only comes with regard to one who eats a thanksgiving offering or a peace-offering before the sprinkling of the bloods, [to teach] that he is [transgressing a negative commandment]."