Mishnah Tevul Yom 1:5: Barley and spelt which are not peeled, crowfoot root, asafoetida, and silphium, Rabbi Yehuda says: also black beans, are pure [even after coming into contact] with an Origin of impurity; and it is needless to say [that this is the case] regarding a tevul yom, according to Rabbi Meir. And the Sages say: they are pure [if they came into contact] with a tevul yom, but they are impure with all [other] impurities. Barley and spelt which are peeled, and wheat regardless of whether it is peeled or not, cumin, and sesame, and pepper, Rabbi Yehuda says: also white beans, are impure regarding a tevul yom; and it is needless to say [that this is the case] regarding all [other] impurities.

השערה והכסמת בזמן שאינן קלופים, התיאה והחלתית והאלום, רבי יהודה אומר, אף אפונים שחורים, טהורים באב הטמאה, ואין צריך לומר בטבול יום, דברי רבי מאיר. וחכמים אומרים, טהורים בטבול יום, וטמאים בכל הטמאות. השערה והכסמת בזמן שהן קלופים, והחטה בין שהיא קלופה בין שאינה קלופה, הקצח, והשמשום, והפלפל, רבי יהודה אומר, אף אפונים לבנים, טמאים בטבול יום, ואין צריך לומר בכל הטמאות:

Mishnah Tevul Yom 2:1: Liquids [such as spittle, urine, tears] of a tevul yom [one who has immersed that day in a mikvah, but who must wait until nightfall to become fully pure, and is of a second degree impurity until then] are like the liquids which he has touched; neither of them are rendered impure. And all others who are impure, whether with a minor or a major degree [or impurity], the liquids emitted by them are like liquids which one of them has touched; these and those are of a primary degree [of impurity], except for a liquid which is an Origin of impurity [i.e. such as the spit of urine of a zav].

מַשְׁקֵה טְבוּל יוֹם, כְּמַשְׁקִין שֶׁהוּא נוֹגֵעַ בָּהֶן. אֵלּוּ וָאֵלּוּ, אֵינָן מְטַמְּאִין. וּשְׁאָר כָּל הַטְּמֵאִין, בֵּין קַלִּין בֵּין חֲמוּרִין, הַמַּשְׁקִין הַיּוֹצְאִים מֵהֶן, כַּמַּשְׁקִין שֶׁהוּא נוֹגֵעַ בָּהֶן. אֵלּוּ וָאֵלּוּ תְּחִלָּה, חוּץ מִן הַמַּשְׁקֶה שֶׁהוּא אַב הַטֻּמְאָה: