Leviticus 7:15; Leviticus 7:18

Leviticus 7:15

15 The meat of their fellowship offering of thanksgiving must be eaten on the day it is offered; they must leave none of it till morning.

Leviticus 7:18

18 If any meat of the fellowship offering is eaten on the third day, the one who offered it will not be accepted. It will not be reckoned to their credit, for it has become impure; the person who eats any of it will be held responsible.