Mishnah Parah 11:3: If a fig cake of trumah fell into the chatat waters, and one took it and ate it, if it [the amount be ate] contained [a volume] equivalent to an egg, [regardless of] whether it was pure or impure, the waters are impure and the eater is liable for the death penalty. If it did not contain [a volume] equivalent an egg, the waters are pure and the eater is liable for the death penalty. Rabbi Yose says: If it was pure, the waters are pure. One who is pure for chatat, if he stuck his head and the majority of his body into chatat waters, he is made impure.

דְּבֵלָה שֶׁל תְּרוּמָה שֶׁנָּפְלָה לְתוֹךְ מֵי חַטָּאת וּנְטָלָהּ וַאֲכָלָהּ, אִם יֶשׁ בָּהּ כַּבֵּיצָה, בֵּין טְמֵאָה בֵּין טְהוֹרָה, הַמַּיִם טְמֵאִין, וְהָאוֹכְלָהּ חַיָּב מִיתָה. אֵין בָּהּ כַּבֵּיצָה, הַמַּיִם טְהוֹרִין, וְהָאוֹכְלָהּ חַיָּב מִיתָה. רַבִּי יוֹסֵי אוֹמֵר, בִּטְהוֹרָה, הַמַּיִם טְהוֹרִים. הַטָּהוֹר לְחַטָּאת שֶׁהִכְנִיס רֹאשׁוֹ וְרֻבּוֹ לְתוֹךְ מֵי חַטָּאת, נִטְמָא:

Mishnah Parah 11:4: Anyone who is required by the words of the Torah to enter into water [for ritual immersion, to become pure], renders impure sanctified property, trumah, unsanctified objects, and the tithe; and he is forbidden to enter the temple. After his entering [the water, but before sunset on the day of his immersion], he renders sanctified property impure, and he invalidates trumah, according to Rabbi Meir. And the Sages say: he invalidates sanctified property and trumah, but he is permitted to [touch] unsanctified objects and the tithe. And if he entered the temple, whether before his entering [the water], or after his entering [but before sunset that day], he is liable.

כֹּל הַטָּעוּן בִּיאַת מַיִם מִדִּבְרֵי תוֹרָה, מְטַמֵּא אֶת הַקֹּדֶשׁ וְאֶת הַתְּרוּמָה וְאֶת הַחֻלִּין וְאֶת הַמַּעֲשֵׂר, וְאָסוּר עַל בִּיאַת הַמִּקְדָּשׁ. לְאַחַר בִּיאָתוֹ, מְטַמֵּא אֶת הַקֹּדֶשׁ, וּפוֹסֵל אֶת הַתְּרוּמָה, דִּבְרֵי רַבִּי מֵאִיר. וַחֲכָמִים אוֹמְרִים, פּוֹסֵל בַּקֹּדֶשׁ וּבַתְּרוּמָה, וּמֻתָּר בַּחֻלִּין וּבַמַּעֲשֵׂר. וְאִם בָּא אֶל הַמִּקְדָּשׁ, בֵּין לִפְנֵי בִיאָתוֹ בֵּין לְאַחַר בִּיאָתוֹ, חַיָּב: