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.

Read Leviticus 7:15 Using Other Translations

And the flesh of the sacrifice of his peace offerings for thanksgiving shall be eaten the same day that it is offered; he shall not leave any of it until the morning.
And the flesh of the sacrifice of his peace offerings for thanksgiving shall be eaten on the day of his offering. He shall not leave any of it until the morning.
The meat of the peace offering of thanksgiving must be eaten on the same day it is offered. None of it may be saved for the next morning.