נזיר ה׳Nazir 5

Mishnah 3ג׳

מִי שֶׁנָּדַר בְּנָזִיר וְנִשְׁאַל לְחָכָם וַאֲסָרוֹ, מוֹנֶה מִשָּׁעָה שֶׁנָּדַר. נִשְׁאַל לְחָכָם וְהִתִּירוֹ, הָיְתָה לוֹ בְהֵמָה מֻפְרֶשֶׁת, תֵּצֵא וְתִרְעֶה בָעֵדֶר. אָמְרוּ בֵית הִלֵּל לְבֵית שַׁמַּאי, אִי אַתֶּם מוֹדִים בָּזֶה שֶׁהוּא הֶקְדֵּשׁ טָעוּת שֶׁתֵּצֵא וְתִרְעֶה בָעֵדֶר. אָמְרוּ לָהֶן בֵּית שַׁמַּאי, אִי אַתֶּם מוֹדִים בְּמִי שֶׁטָּעָה וְקָרָא לַתְּשִׁיעִי עֲשִׂירִי וְלָעֲשִׂירִי תְשִׁיעִי וְלָאַחַד עָשָׂר עֲשִׂירִי שֶׁהוּא מְקֻדָּשׁ. אָמְרוּ לָהֶם בֵּית הִלֵּל, לֹא הַשֵּׁבֶט קִדְּשׁוֹ. וּמָה אִלּוּ טָעָה וְהִנִּיחַ אֶת הַשֵּׁבֶט עַל שְׁמִינִי וְעַל שְׁנֵים עָשָׂר, שֶׁמָּא עָשָׂה כְלוּם. אֶלָּא כָּתוּב שֶׁקִּדֵּשׁ אֶת הָעֲשִׂירִי, הוּא קִדֵּשׁ אֶת הַתְּשִׁיעִי וְאֶת אַחַד עָשָׂר:

Someone who vowed to be a nazir and asked a sage [to nullify his vow] but [the sage] prohibited him [i.e. upheld the vow], he counts [his period of oath] from the time that he swore. [If] he asked a sage and he permitted him [to nullify his vow]: [if] he had an animal set aside, it can go and graze with the flock. Beit Hillel said to Beit Shammai: "Do you not agree with this that it is mistaken sanctification [i.e. he did not mean to make something holy], where it goes and grazes with the flock'and is not sanctified?" Beit Shammai said to them: "Do you not agree about one who made a mistake (in counting the tenth animal to be tithed] and called the ninth, 'Tenth,' and the tenth, 'Ninth,' or the eleventh, 'Tenth,' that it is sanctified?" Beit Hillel said to them: "The staff does not sanctify it. What [if] he made a mistake and put the staff on the eighth or twelfth [animal]? Has he done anything? Rather, the verse which sanctifies the tenth, it sanctifies the ninth and the eleventh."

Mishnah 4ד׳

מִי שֶׁנָּדַר בְּנָזִיר וְהָלַךְ לְהָבִיא אֶת בְּהֶמְתּוֹ וּמְצָאָהּ שֶׁנִּגְנְבָה, אִם עַד שֶׁלֹּא נִגְנְבָה בְהֶמְתּוֹ נָזַר, הֲרֵי זֶה נָזִיר. וְאִם מִשֶּׁנִּגְנְבָה בְהֶמְתּוֹ נָזַר, אֵינוֹ נָזִיר. וְזוֹ טָעוּת טָעָה נַחוּם הַמָּדִי כְּשֶׁעָלוּ נְזִירִים מִן הַגּוֹלָה וּמָצְאוּ בֵית הַמִּקְדָּשׁ חָרֵב, אָמַר לָהֶם נַחוּם הַמָּדִי, אִלּוּ הֱיִיתֶם יוֹדְעִים שֶׁבֵּית הַמִּקְדָּשׁ חָרֵב הֱיִיתֶם נוֹזְרִים. אָמְרוּ לוֹ לֹא, וְהִתִּירָן נַחוּם הַמָּדִי. וּכְשֶׁבָּא הַדָּבָר אֵצֶל חֲכָמִים, אָמְרוּ לוֹ, כֹּל שֶׁנָּזַר עַד שֶׁלֹּא חָרַב בֵּית הַמִּקְדָּשׁ, נָזִיר. וּמִשֶּׁחָרַב בֵּית הַמִּקְדָּשׁ, אֵינוֹ נָזִיר:

One who vowed to be a nazir, went to bring his [sacrificial] animal, and found that it was stolen: if while his animal was not yet stolen he made his nazir vow, behold he is a nazir. And if from [the time] when his animal was stolen he made his nazir vow, he is not a nazir. And this is the mistake that Nachum the Median made when the nezirim came up [to Israel] from exile and found the Temple destroyed. Nachum the Median said to them, "If you had known that the Temple was destroyed, would you have made nazir vows?" They said to him, "No," and he permitted them (he annulled their vows). And when the matter came to the sages, they said to him, "Anyone who made a nazir vow while the Temple was not destroyed is a nazir. And from [the time] when the Temple was destroyed, he is not a nazir."