Leviticus 4:10

(just as it is removed from the ox of the sacrifice of peace offerings), and the priest is to offer them up in smoke on the altar of burnt offering.

Treasury of Scripture Knowledge

Summary

As it was taken off from the bullock of the sacrifice of peace offerings: and the priest shall burn them upon the altar of the burnt offering.

Bible References

General references

Leviticus 4:19
He shall remove all its fat from it and offer it up in smoke on the altar.
Leviticus 7:3
Then he shall offer from it all its fat: the fat tail and the fat that covers the entrails,
Leviticus 16:25
Then he shall offer up in smoke the fat of the sin offering on the altar.