Leviticus 2:15

And thou shalt put oil upon it, and lay frankincense thereon: it is a meat offering.

Cross-references

Leviticus 2:1 gives identical instructions for the grain offering with oil and frankincense, directly parallel to this verse.

Leviticus 5:11 explicitly prohibits oil and frankincense on the poor person's sin offering — a direct contrast to the requirement here.

Numbers 15:4 describes a grain offering with flour and oil, similar to this verse, but omits frankincense — a parallel yet distinct offering type.