Nazir 14A

אם תמצי לומר נזירות מועטת, כיון דעשרה יומין הוא דיתרין ⁠— לא סליק ליה הלין עשרה, ודאי נזיר מאה יום, כיון דאית ליה תמנין יומין לבסוף, סלקין ליה, או לא?

If you say that when he accepts naziriteship upon himself after 20 days, and then vows a short term of naziriteship of 30 days starting now, then since, if he pauses from his first term of naziriteship after 20 days, it is only 10 days that are left over to complete after the second term of naziriteship, those 10 should not be reckoned for him to complete a full term of naziriteship. 10 days are insufficient for hair growth. Therefore, he must observe a full 30-day term of naziriteship after the second term of naziriteship, which means he is not a nazirite for the first 20 days. With that assumption in mind, the question arose: Certainly if he vows to be a nazirite for 100 days, since he has a further 80 days at the end, which is sufficient time for his hair to grow, do the first 20 days count for him as part of the 100 days or not?

ואם תמצי לומר חיילי: אמר ״הריני נזיר לאחר עשרים יום ומעכשיו נזיר עולם״, מהו? מי חיילא עליה, או לא?

This inquiry leads to yet another question: And if you say that the first days of naziriteship take effect, and his term of naziriteship will be completed in the 80 days after the second term of naziriteship, then if he said: I am hereby a nazirite after 20 days, and from now I am a permanent nazirite, what is the halakha? Does the permanent naziriteship take effect for him during those 20 days or not? Since permanent naziriteship is unlimited, he could not have intended to complete its days after the second term of naziriteship, and it is reasonable to assume that he intended for the permanent naziriteship to begin after the second term of naziriteship has been completed.