Numbers 6:11

New International Version

The priest is to offer one as a sin offering and the other as a burnt offering to make atonement for the Nazirite because they sinned by being in the presence of the dead body. That same day they are to consecrate their head again.

Cross References

Leviticus 5:7

“ ‘Anyone who cannot afford a lamb is to bring two doves or two young pigeons to the Lord as a penalty for their sin—one for a sin offering and the other for a burnt offering.

Numbers 6:12

They must rededicate themselves to the Lord for the same period of dedication and must bring a year-old male lamb as a guilt offering. The previous days do not count, because they became defiled during their period of dedication.