Leviticus 5:1

5:1 "'If anyone sins, in that he hears the voice of adjuration, he being a witness, whether he has seen or known, if he doesn't report it, then he shall bear his iniquity.
-World English Bible

Other Translation

5:1 And if a soul sin, and hear the voice of swearing, and [is] a witness, whether he hath seen or known [of it]; if he do not utter [it], then he shall bear his iniquity.
-King James Version