Mishnayos Nedarim Perek 2 Mishnah 5

One who took a vow by associating an item with a dedication [ḥerem], saying: This item is hereby forbidden to me like an item dedicated to the Temple, and then said: I took a vow only with the intention that it would be like a sea net [ḥermo shel yam] that is used to catch fish; or one who took a vow by associating an item with an offering, and then said: I took a vow only with reference to offerings to kings, i.e., a gift for a king, not an offering to God. Or one who said: I am hereby an offering myself [atzmi], and then said: I took a vow only with reference to a bone [etzem] that I set aside for myself to vow with, as atzmi means both myself and my bone, i.e., he set aside a bone so as to pretend to take a vow upon himself; or one who said: Deriving benefit from me is konam for my wife, and then said: I took a vow only with regard to my first wife whom I divorced, not with regard to my current wife. For all of the above vows, those who took them do not need to request of a halakhic authority to dissolve them, as the speaker interpreted the vows in a manner that caused them not to take effect at all. However, if they requested dissolution, apparently due to their being uncertain of their explanations, the court punishes them and treats them stringently and the vows are not dissolved. This is the statement of Rabbi Meir. And the Rabbis say: These vows are not treated stringently. Rather, dissolution is broached with them by suggesting a different extenuation, i.e., the halakhic authority suggests extenuating circumstances that undermine the vow but do not pertain to its wording. And we teach them that they should not take this kind of vow in the future, in order that they will not take vows lightly.

נָדַר בְּחֵרֶם וְאָמַר, לֹא נָדַרְתִּי אֶלָּא בְחֶרְמוֹ שֶׁל יָם. בְּקָרְבָּן, וְאָמַר, לֹא נָדַרְתִּי אֶלָּא בְקָרְבָּנוֹת שֶׁל מְלָכִים. הֲרֵי עַצְמִי קָרְבָּן, וְאָמַר, לֹא נָדַרְתִּי אֶלָּא בְעֶצֶם שֶׁהִנַּחְתִּי לִי לִהְיוֹת נוֹדֵר בּוֹ. קוֹנָם אִשְׁתִּי נֶהֱנֵית לִי, וְאָמַר לֹא נָדַרְתִּי אֶלָּא בְאִשְׁתִּי הָרִאשׁוֹנָה שֶׁגֵּרַשְׁתִּי, עַל כֻּלָּן אֵין נִשְׁאָלִים לָהֶם. וְאִם נִשְׁאֲלוּ, עוֹנְשִׁין אוֹתָן וּמַחְמִירִין עֲלֵיהֶן, דִּבְרֵי רַבִּי מֵאִיר. וַחֲכָמִים אוֹמְרִים, פּוֹתְחִין לָהֶם פֶּתַח מִמָּקוֹם אַחֵר, וּמְלַמְּדִים אוֹתָן כְּדֵי שֶׁלֹּא יִנְהֲגוּ קַלּוּת רֹאשׁ בַּנְּדָרִים: