Talmud for Keritot 1:2
עַל אֵלּוּ חַיָּבִים עַל זְדוֹנָם כָּרֵת, וְעַל שִׁגְגָתָם חַטָּאת, וְעַל לֹא הוֹדַע שֶׁלָּהֶן אָשָׁם תָּלוּי, חוּץ מִן הַמְטַמֵּא מִקְדָּשׁ וְקָדָשָׁיו, מִפְנֵי שֶׁהוּא בְעוֹלֶה וְיוֹרֵד, דִּבְרֵי רַבִּי מֵאִיר. וַחֲכָמִים אוֹמְרִים, אַף הַמְגַדֵּף, שֶׁנֶּאֱמַר (במדבר טו), תּוֹרָה אַחַת יִהְיֶה לָכֶם לָעֹשֶׂה בִּשְׁגָגָה, יָצָא מְגַדֵּף, שֶׁאֵינוֹ עוֹשֶׂה מַעֲשֶׂה:
One is liable for <i>Karet</i> for intentionally [performing] these [sins listed in the previous <i>Mishnah</i>], and is obligated to bring a <i>Chattat</i> [an offering brought to expiate sin, if he performs] them unintentionally. [If one is unsure whether he committed one of] these he brings an <i>Asham Talui</i> [a guilt-offering brought upon possible commission of a sin]. [The latter] is not so [if one] entered the Temple while impure or ate holy food when impure, since he is liable to bring an <i>Oleh veYored</i> [a sliding-scale <i>Chattat</i> offering where the economic status of the individual determines whether he brings an animal, a bird, or flour], these are the words of Rabbi Meir. And the Sages say: The blasphemer [is also exempt from the <i>Chattat</i> and the <i>Asham Talui</i>], as it says (Numbers 15:29): "You shall have one set of laws for those who act unintentionally", which excludes the blasphemer who does not perform an act [speech is not considered action].