If one says, “Behold, I am a nazirite,” he shaves on the thirty-first day. If he shaved on the thirtieth day, he has fulfilled his obligation. [If, however, he says] “Behold, I am a nazirite for thirty days,” and shaves on the thirtieth day, he has not fulfilled his obligation.

If a man vows two naziriteships, he shaves for the first one on the thirty-first day, and for the second on the sixty-first day. If he shaved for the first on the thirtieth day, he can shave for the second on the sixtieth day. If he shaved on the day before the sixtieth, he has fulfilled his obligation. For this was the testimony that Rabbi Papias testified concerning one who vows two naziriteships, that if he shaved for the first on the thirtieth day, he is to shave for the second on the sixtieth day. And if he shaved on the day before the sixtieth day, he has fulfilled his obligation, the thirtieth day counting towards the required number.

[If he says,] “Behold, I am a nazirite for one hundred days,” and becomes impure on the hundredth day, he renders void the whole period. Rabbi Eliezer says: only thirty days are void. If he becomes impure on the hundred and first day, thirty days are void. Rabbi Eliezer says: only seven days are void.

If one takes a nazirite vow while in a graveyard, then even if he remains there for thirty days, these do not count, and he does not have to bring the sacrifice [prescribed] for impurity. If he leaves it and re-enters, [the period] counts, and he must bring the sacrifice [prescribed] for impurity. Rabbi Eliezer says: not [if he re-enters] on the same day, for it says, “But the former days shall be void,” (Numbers 6:12) until there are former days.

If one vows a long naziriteship of and completes his naziriteship and afterwards comes to the land [of Israel]: Beth Shammai says that he is a nazirite for thirty days, But Beth Hillel says that his naziriteship begins again. It happened that Queen Helena, when her son went to war, said: “If my son returns in peace from the war, I shall be a nazirite for seven years.” Her son returned from the war, and she was a nazirite for seven years. At the end of the seven years, she went up to the land [of Israel] and Beth Hillel instructed her to be a nazirite for a further seven years. Towards the end of this seven years, she contracted ritual defilement, and so altogether she was a nazirite for twenty-one years. Rabbi Judah said: she was a nazirite only for fourteen years.

One who has two sets of witnesses testifying about him: one says that he vowed two [naziriteships] and the other that he vowed five: Beth Shammai says: the evidence is conflicting, and there is no naziriteship at all. But Beth Hillel says: “five” includes “two”, so that he becomes a nazirite for two [naziriteships].