TSK · Numbers 5:25

You are to put all these in Aaron’s hands and in his sons’ hands, and you are to wave them as a wave offering before the LORD.

then the man must bring his wife to the priest, and he must bring the offering required for her, one tenth of an ephah of barley meal; he must not pour olive oil on it or put frankincense on it, because it is a grain offering of suspicion, a grain offering for remembering, for bringing iniquity to remembrance.