שבועות ג׳Shevuot 3

Mishnah 1א׳

שְׁבוּעוֹת שְׁתַּיִם שֶׁהֵן אַרְבַּע, שְׁבוּעָה שֶׁאֹכַל וְשֶׁלֹּא אֹכַל, שֶׁאָכַלְתִּי וְשֶׁלֹּא אָכַלְתִּי. שְׁבוּעָה שֶׁלֹּא אֹכַל וְאָכַל כָּל שֶׁהוּא, חַיָּב, דִּבְרֵי רַבִּי עֲקִיבָא. אָמְרוּ לוֹ לְרַבִּי עֲקִיבָא, הֵיכָן מָצִינוּ בְּאוֹכֵל כָּל שֶׁהוּא שֶׁהוּא חַיָּב, שֶׁזֶּה חַיָּב. אָמַר לָהֶן רַבִּי עֲקִיבָא, וְכִי הֵיכָן מָצִינוּ בִּמְדַבֵּר וּמֵבִיא קָרְבָּן, שֶׁזֶּה מְדַבֵּר וּמֵבִיא קָרְבָּן. שְׁבוּעָה שֶׁלֹּא אֹכַל וְאָכַל וְשָׁתָה, אֵינוֹ חַיָּב אֶלָּא אַחַת. שְׁבוּעָה שֶׁלֹּא אֹכַל וְשֶׁלֹּא אֶשְׁתֶּה וְאָכַל וְשָׁתָה, חַיָּב שְׁתָּיִם:

Oaths are of two [types], which are [really] four. An oath that [I will] eat or [will] not eat; that I ate or that I did not eat. An oath that [I will not] eat, and eats a minute amount, he is liable, these are the words of Rabbi Akiva. They [the Sages] said to Rabbi Akiva, where do we find that one who eats a minute amount, he is liable, that this one is liable? Rabbi Akiva said to them: And where do we find that he who speaks and brings a sacrifice, that this one who speaks and brings a sacrifice? An oath that [I will] not eat, and he ate and drank, is only liable once, an oath that [I will] not eat and I will not drink, and ate and drank, he is liable twice.

Mishnah 2ב׳

שְׁבוּעָה שֶׁלֹּא אֹכַל, וְאָכַל פַּת חִטִּין וּפַת שְׂעֹרִין וּפַת כֻּסְּמִין, אֵינוֹ חַיָּב אֶלָּא אַחַת. שְׁבוּעָה שֶׁלֹּא אֹכַל פַּת חִטִּין וּפַת שְׂעֹרִין וּפַת כֻּסְּמִין, וְאָכַל, חַיָּב עַל כָּל אַחַת וְאֶחָת:

An oath that [I will] not eat, and eats wheat bread, barley bread, and spelt bread is only liable once. An oath that [I will] not eat wheat bread, barley bread, and spelt bread, and he ate, he is liable for each one.