Leviticus 8:32
And that which remaineth of the flesh and of the bread shall ye burn with fire.
Cross-reference
Leviticus 7:17
Parallel
Leviticus 7:17 gives a similar rule for peace offerings: leftover sacred meat must be burned, reinforcing the principle of holiness.
Exodus 29:34
Citation
Exodus 29:34 gives the identical command for the ordination offering — this verse carries out that earlier instruction.
Exodus 12:10
Parallel
Exodus 12:10 commands burning leftover Passover lamb, echoing the same instruction for consecrated meat here.