NUM 6:12

12 The amount of time that you were set apart for me the previous time does not count, because you had become unacceptable to me [by coming close to a corpse] during the time that you were a Nazir-man. So you must again make a solemn promise to dedicate yourself to me for the entire amount of time that you indicated the previous time. And you must also sacrifice a one-year-old lamb for not doing what you were required to do.