Leviticus 4:28

or if his sin which he has committed comes to his knowledge, then he shall bring as his offering a kid of the goats, a female without blemish, for his sin which he has committed.

Surrounding context

4:27 "If anyone of the common people sins unintentionally by doing something against any of the commandments of the LORD in anything which ought not to be done, and is guilty,

4:28 or if his sin which he has committed comes to his knowledge, then he shall bring as his offering a kid of the goats, a female without blemish, for his sin which he has committed.

4:29 And he shall lay his hand on the head of the sin offering, and kill the sin offering at the place of the burnt offering.

Translation and sources