Numbers 6:11 in the King James Version
And the priest shall offer the one for a sin offering, and the other for a burnt offering, and make an atonement for him, for that he sinned by the dead, and shall hallow his head that same day.
Context
10 On the eighth day he shall bring two turtledoves or two young pigeons to the priest, to the door of the Tent of Meeting.
11 The priest shall offer one for a sin offering, and the other for a burnt offering, and make atonement for him, because he sinned by reason of the dead, and shall make his head holy that same day.
12 He shall separate to the LORD the days of his separation, and shall bring a male lamb a year old for a trespass offering; but the former days shall be void, because his separation was defiled.