Jerusalem Talmud Nedarim 2.2

משנה: קָרְבָּן לֹא אוֹכַל לָךְ וְקָרְבָּן שֶׁאוֹכַל לָךְ לֹא קָרְבָּן לֹא אוֹכַל לָךְ מוּתָּר. שְׁבוּעָה לֹא אוֹכַל לָךְ שְׁבוּעָה שֶׁאוֹכַל לָךְ לֹא שְׁבוּעָה לֹא אוֹכַל לָךְ אָסוּר. זֶה חוֹמֶר בַּשְּׁבוּעוֹת מִבַּנְּדָרִים. וְחוֹמֶר בַּנְּדָרִים מִבַּשְּׁבוּעוֹת. כֵּיצַד אָמַר קוֹנָם סוּכָּה שֶׁאֵינִי עוֹשֶׂה לוּלָב שֶׁאֵינִי נוֹטֵל. תְּפִילִין שֶׁאֵינִי נוֹתֵן בַּנְּדָרִים אָסוּר בַּשְּׁבוּעוֹת מוּתָּר. שֶׁאֵין נִשְׁבָּעִין לַעֲבוֹר עַל הַמִּצְוֹת.

MISHNAH: Qorbān [shall be] what I shall not eat at your place, or qorbān [shall be] what I shall eat from you, no qorbān [shall be] what I shall not eat from you; he is permitted. An oath that I shall not eat at your place, an oath that I shall eat from you, no oath that I shall not eat from you; he is forbidden. That is more restrictive for oaths than for vows. What is more restrictive for vows than for oaths? If he said qônām that I shall not make a sukkah, that I shall not take a lulab, that I shall not put on phylacteries, as a vow he is forbidden, as an oath he is permitted since one cannot swear to transgress commandments.

הלכה: קָרְבָּן לֹא אוֹכַל לָךְ כול׳. וְלָמָּה לֹא תַנִּינָן. שְׁבוּעָה שֶׁלֹּא אוֹכַל לָךְ. מוּתָּר. אֶלָּא בְגִין דְּתַנִינָן. חוֹמֶר בַּשְּׁבוּעוֹת מִבַּנְּדָרִים. וְסָבְרִנָן מֵימַר. שְׁבוּעָה לֹא אוֹכַל לָךְ. דִּבְרֵי חֲכָמִים אָסוּר. לְפוּם כֵּן לֹא תַנִּינָן.

HALAKHAH: “Qorbān [shall be] what I shall not eat at your place,” etc. Why did we not state: An oath that I shall eat from you, he is permitted? Only because we stated: “That is more restrictive for oaths than for vows.” We wanted to say about “an oath that I shall not eat of yours,” that the words of the Sages are: he is forbidden. Therefore it was not stated.

הֲרֵי הוּא קָרְבָּן. הֲרֵי הוּא לַקָּרְבָּן. הֲרֵי הוּא כְקָרְבָּן. מוּתָּר. הֲרֵי הוּא שְׁבוּעָה. הֲרֵי הוּא לַשְּׁבוּעָה. הֲרֵי הוּא כִשְׁבוּעָה. אָסוּר.

“That is a sacrifice, that is for a sacrifice, that is like a sacrifice,” is permitted. “That is an oath, that is for an oath, that is like an oath,” is forbidden.

זֶה חוֹמֶר בַּשְּׁבוּעוֹת מִבַּנְּדָרִים. וְחוֹמֶר בַּנְּדָרִים מִבַּשְּׁבוּעוֹת. כֵּיצַד. אוֹ נֶפֶשׁ כִּי תִשָּׁבַע לְבַטֵּא בִשְׂפָתַיִם לְהָרַע אוֹ לְהֵ[י]טִיב. מַה הַטָּבָה רְשׁוּת אַף הָרָעָה רְשׁוּת. יָצָא דָבָר שֶׁלְּאִיסּוּר בַּדָּבָר שֶׁל מִצְוָה. הֲווֹן בָּעֵיי מֵימַר. שׁוֹגֵג. הָא הַמֵּזִיד לֹא. אַשְׁכָּח תַּנֵּי. רִבִּי יִשְׁמָעֵאל אוֹמֵר. כְּכָל הַיּוֹצֵא מִפִּיו יַעֲשֶׂה. לֹא הַיּוֹצֵא מִפִּי שָׁמַיִם. וָמַר. אַף בְּהֶקְדֵּשׁ כֵּן. רִבִּי יוֹסֵה בְשֵׁם רִבִּי הִילָא. שֶׁכֵּן אָדָם מַקְדִּישׁ סוֹכָּתוֹ לַשָׁמַיִם.

“That is more restrictive for oaths than for vows. What is more restrictive for vows than for oaths?” “Or a person who swears to lightly express with his lips for bad or for good.” Just as doing good is a matter of choice, so doing bad is a matter of choice; that excludes any prohibition which is a commandment. They wanted to say, inadvertently, but not intentionally. It was found stated: Rebbi Ismael says, “anything that comes out of his mouth he shall do,” not what comes out of Heaven’s mouth. Should we say that this is the same for vows of sanctification? Rebbi Yose in the name of Rebbi Hila: For a man may vow his sukkah to Heaven.