LXX Num 5:15

καὶ καὶ ἄξει ὁ ἄνθρωπος τὴν γυναῖκα αὐτοῦ πρὸς τὸν ἴε ῥέα, καὶ προσοίσει τὸ δῶρον περὶ αὐτῆς, τὸ δέκατον τοῦ οἰφί, ἄλευρον κρίθινον· οὐκ ἐπιχεεῖ ἐπ’ αὐτὸ ἔλαιον οὐδὲ ἐπιθήσει ἐπ’ αὐτὸ λίβανον, ἔστιν γὰρ θυσία ζηλοτυπίας, θυσία μνημοσύνου ἀναμιμνήσκουσα ἁμαρτίαν.

then he is to bring his wife to the priest. He must also bring for her an offering of a tenth of an ephah of barley flour. He is not to pour oil over it or put frankincense on it, because it is a grain offering for jealousy, an offering of memorial as a reminder of iniquity.