Numbers 5:20-21

20But if you have gone astray, though you are under your husband's authority, and if you have defiled yourself, and some man other than your husband has lain with you,

21then' (let the priest make the woman take the oath of the curse, and say to the woman) 'the Lord make you a curse and an oath among your people, when the Lord makes your thigh fall away and your body swell.