Numbers 5:15

he shall bring her to the priest, and he shall offer an oblation for her, a tenth part of native barley meal. He shall not pour oil over it, nor shall he place frankincense on it, because it is a sacrifice for jealousy, or an oblation investigating adultery

Other versions

King James Version

Then shall the man bring his wife unto the priest, and he shall bring her offering for her, the tenth part of an ephah of barley meal; he shall pour no oil upon it, nor put frankincense thereon; for it is an offering of jealousy, an offering of memorial, bringing iniquity to remembrance.

English Standard Version

then the man shall bring his wife to the priest and bring the offering required of her, a tenth of an ephah of barley flour. He shall pour no oil on it and put no frankincense on it, for it is a grain offering of jealousy, a grain offering of remembrance, bringing iniquity to remembrance.

New International Version

then he is to take his wife to the priest. He must also take an offering of a tenth of an ephah of barley flour on her behalf. He must not pour oil on it or put incense on it, because it is a grain offering for jealousy, a reminder offering to draw attention to guilt.