Leviticus 7:16

16But aif the sacrifice of his offering is a vow offering or a freewill offering, it shall be eaten on the day that he offers his sacrifice, and on the next day what remains of it shall be eaten.

Numbers 15:3

3and byou offer to the Lord from the herd or from the flock a food offering
Or  an offering by fire; so throughout Numbers
or a burnt offering or a sacrifice, dto fulfill a vow or as a freewill offering or eat your appointed feasts, to make a fpleasing aroma to the Lord,
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