Nazir 3:5 - 3:6

ואינו מביא קרבן טומאה – for as it is written a sacrifice for defilement, it is written for a pure Nazirite who was defiled; nevertheless, if he was warned about it, he is liable for whipping.

יצא ונכנס עולין לו מן המנין – and he brings a sacrifice of defilement; but our Mishnah is explained in the Gemara (Tractate Nazir 19a) as follows: if he left the cemetery and sprinkled on the third and seventh days and immersed [in the Mikveh] and became purified from his defilement and he began to count the days of his Naziritieship, even though he went back and entered afterwards into the cemetery, they count for him from the number those days which he counted after he purified, for since his purification interrupted whether [we are dealing with] the first days that he was a Nazirite and he is in the cemetery, or whether [we are dealing with] the latter days and even though he returned and entered the cemetery, the defilement of the cemetery do not cause him to lose the number of the days that were counted while in a state of purity, for the Nazirite does not lose other the twelve days defilements that are mentioned regarding it. And that which is stated furthermore, and he brings a sacrifice of defilement, this is how it should be stated: if he was defiled again with one of the defilements that the Nazirite shaves and brings the sacrifice of defilement and he loses [those days].

ר"א אומר לא בו ביום – meaning to say, if on that selfsame day that he immersed [in a Mikveh] and became pure, on that same day he became defiled with one of the defilements that [causes] the Nazirite to shave, he does not lose that same day, as it is written (Numbers 6:12): “The previous period shall be void [since his consecrated hair was defiled],” the defilement does not cause him to lose until he will have two days of Naziriteship counted and the same law applies with a Nazirite in general who was defiled on the first day of the count of his Naziriteship, for the defilement does not cause him loss of the that day, but rather completes for him the number of the days of his Naziriteship, and the Halakha is according to Rabbi Eliezer.

והשלים את נזירותו ואח"כ בא לארץ – for Naziriteship is not practiced other than in the Land [of Israel] because of the Levitical uncleanness of the heathen countries, and whomever made the vow of Naziriteship outside the land [of Israel] we obligate him to ascend to the Land of Israel and practice there his Naziriteship.

נזיר בתחלה – he is required to observe in the Land of Israel according to the number of the days that he vowed for his Naziriteship and the days that he observed outside the Land [of Israel] is as if he had not observed his Naziriteship at all.

אמר ר"י לא היתה נזיה אלא ארבע עשרה שנה – Rabbi Yehuda holds like Rabbi Eliezer wo stated above in our chapter [in Mishnah 4], that [a Nazirite] who became defiled on the day of completion, does not lose other than thirty days, and because of this, it is stated, that Queen Helena who became defiled at the end of fourteen years which on the day of completion, she did not lose everything and was not required to count another seven years, but rather, only thirty days, and because it was not a complete year, it did not count in the total, and this same law applies as if he said, that she was not a Nazirite other than for fourteen years and thirty days.