Leviticus 5:2-6

²Whosoever toucheth any unclean thing, either that which hath been killed by a beast, or died of itself, or any other creeping thing: and forgetteth his uncleanness, he is guilty, and hath offended:

³And if he touch any thing of the uncleanness of man, according to any uncleanness wherewith he is wont to be defiled, and having forgotten it, come afterwards to know it, he shall be guilty of an offence.

⁴The person that sweareth, and uttereth with his lips, that he would do either evil or good, and bindeth the same with an oath, and his word, and having forgotten it afterwards understandeth his offence,

⁵Let him do penance for his sin,

⁶And offer of the flocks an ewe lamb, or a she goat, and the priest shall pray for him and for his sin: