Mishnayos Menachos Perek 12 Mishnah 2

In the case of one who says: It is incumbent upon me to bring a meal offering prepared in a shallow pan, and he brought a meal offering prepared in a deep pan instead; or if he said: It is incumbent upon me to bring a meal offering prepared in a deep pan, and he brought a meal offering prepared in a shallow pan instead, the meal offering that he brought, he brought as a voluntary meal offering, but he has not fulfilled his obligation that he undertook with his vow and he must therefore bring another meal offering. If he said: This tenth of an ephah of flour is a meal offering to bring in a shallow pan, and he brought it prepared in a deep pan instead; or if he said: This tenth of an ephah of flour is a meal offering to bring in a deep pan, and he brought a meal offering prepared in a shallow pan, this offering is not valid, because he did not fulfill what he had stated concerning that tenth of an ephah of flour. In the case of one who says: It is incumbent upon me to bring one meal offering of two tenths of an ephah in one vessel, and he divided it and brought it in two vessels, removing a handful from each; or if he says: It is incumbent upon me to bring two tenths of an ephah for two meal offerings in two vessels, and he brought one meal offering of two tenths of an ephah in one vessel and removed one handful from it, then the meal offering that he brought, he brought as a voluntary meal offering, but he has not fulfilled his obligation. If he says: These two tenths of an ephah before me are a meal offering in one vessel, and he divided them and brought them in two vessels, removing a handful from each; or if he says: These tenths of an ephah are two meal offerings in two vessels, and he brought them in one vessel, both of these offerings are not valid, because in both cases he deviated from the number of handfuls that he vowed to remove. In the case of one who says: It is incumbent upon me to bring a meal offering of two tenths of an ephah in one vessel, and he divided them and brought them in two vessels, and others said to him: You vowed to bring a meal offering in one vessel, then if he sacrificed the two tenths of an ephah in two vessels they are not valid even as voluntary meal offerings, and he must bring another meal offering to fulfill his obligation. His failure to respond and explain that it was not his intention to fulfill his vow with this offering indicates that he does intend to fulfill his vow with it. Since he deviated from his vow, the offering is not valid. If he sacrificed the two tenths of an ephah in one vessel after he was reminded, it is valid, as he fulfilled his vow. Likewise, in a case where one says: It is incumbent upon me to bring two meal offerings totaling two tenths of an ephah in two vessels, and he brought it all in one vessel, and others said to him: You vowed to bring meal offerings in two vessels, then if he sacrificed the two tenths of an ephah in two vessels as he had originally vowed, they are valid. If he placed it all in one vessel, its halakhic status is like that of two meal offerings that were intermingled prior to removal of the handfuls. Therefore, if one can remove a handful from each meal offering in and of itself, they are valid. If not, they are not valid, as the Gemara explained on 23a.

הָאוֹמֵר, הֲרֵי עָלַי בְּמַחֲבַת, וְהֵבִיא בְמַרְחֶשֶׁת, בְּמַרְחֶשֶׁת וְהֵבִיא בְמַחֲבַת, מַה שֶּׁהֵבִיא הֵבִיא, וִידֵי חוֹבָתוֹ לֹא יָצָא. זוֹ לְהָבִיא בְמַחֲבַת, וְהֵבִיא בְמַרְחֶשֶׁת, בְּמַרְחֶשֶׁת, וְהֵבִיא בְמַחֲבַת, הֲרֵי זוֹ פְסוּלָה. הֲרֵי עָלַי שְׁנֵי עֶשְׂרוֹנִים לְהָבִיא בִכְלִי אֶחָד, וְהֵבִיא בִשְׁנֵי כֵלִים, בִּשְׁנֵי כֵלִים, וְהֵבִיא בִכְלִי אֶחָד, מַה שֶּׁהֵבִיא הֵבִיא, וִידֵי חוֹבָתוֹ לֹא יָצָא. אֵלּוּ לְהָבִיא בִכְלִי אֶחָד, וְהֵבִיא בִשְׁנֵי כֵלִים, בִּשְׁנֵי כֵלִים וְהֵבִיא בִכְלִי אֶחָד, הֲרֵי אֵלּוּ פְסוּלִין. הֲרֵי עָלַי שְׁנֵי עֶשְׂרוֹנִים לְהָבִיא בִכְלִי אֶחָד וְהֵבִיא בִשְׁנֵי כֵלִים, אָמְרוּ לוֹ בִּכְלִי אֶחָד נָדָרְתָּ, הִקְרִיבָן בִּכְלִי אֶחָד, כְּשֵׁרִים, וּבִשְׁנֵי כֵלִים, פְּסוּלִין. הֲרֵי עָלַי שְׁנֵי עֶשְׂרוֹנִים לְהָבִיא בִשְׁנֵי כֵלִים, וְהֵבִיא בִכְלִי אֶחָד, אָמְרוּ לוֹ, בִּשְׁנֵי כֵלִים נָדָרְתָּ, הִקְרִיבָן בִּשְׁנֵי כֵלִים, כְּשֵׁרִים. נְתָנוֹ בִכְלִי אֶחָד, כִּשְׁתֵּי מְנָחוֹת שֶׁנִּתְעָרָבוּ: