Leviticus 7
15 Ref And the flesh of the praise-offering is to be taken as food on the day when it is offered; no part of it may be kept till the morning.
16 Ref But if his offering is made because of an oath or given freely, it may be taken as food on the day when it is offered; and the rest may be used up on the day after:
17 Ref But if any of the flesh of the offering is still unused on the third day, it is to be burned with fire.