Mishnah Parah 12:2: If one sprinkled, but there is a doubt as to whether [he sprinkled] from the string or from the rod [used to lengthen the short hyssop], or from the stalk [of the hyssop itself], his sprinkling is invalid. If one sprinkled onto two vessels, but there is a doubt as to whether he sprinkled on both of them [from the hyssop], or [that the water on one of them splashed] from its fellow [vessel] and onto it, his sprinkling is invalid. A needle which was placed on earthenware, if one sprinkled onto it, but there is a doubt as to whether he sprinkled on the needle, or [that the water splashed] from the earthenware onto it, his sprinkling is invalid [i.e. the needle remains impure]. A flask with a narrow mouth [containing chatat water], one dips [the hyssop in] and raises it out as usual. Rabbi Yehuda says: [only] the first sprinkling [can be done regularly; but for later sprinklings, there is a concern that hyssop will stick in the mouth of the flask and only absorb from the walls, and there might not be a proper dipping]. Chatat waters which became diminished [i.e. started running out], one dips even the tips of the stalks, and sprinkles, as long as it is not absorbing [water from the sides or bottom of the vessel, since there must be dipping]. If one intended to sprinkle forward and he sprinkled backwards, [or] backwards and he sprinkled forwards, his sprinkling is invalid; forward and he sprinkled to the sides in front of him, his sprinkling is valid. A person maybe be sprinkled, whether with his awareness, or without it. We sprinkle on a person and on vessels, even a hundred [in one sprinkling, so long as some water reaches them, with the sprinkler's intention].

הִזָּה, סָפֵק מִן הַחוּט, סָפֵק מִן הַכּוּשׁ, סָפֵק מִן הַגִּבְעוֹל, הַזָּיָתוֹ פְסוּלָה. הִזָּה עַל שְׁנֵי כֵלִים, סָפֵק עַל שְׁנֵיהֶם הִזָּה, סָפֵק מֵחֲבֵרוֹ מִצָּה עָלָיו, הַזָּיָתוֹ פְסוּלָה. מַחַט שֶׁהִיא נְתוּנָה עַל הַחֶרֶס, וְהִזָּה עָלֶיהָ, סָפֵק עַל הַמַּחַט הִזָּה, סָפֵק מִן הַחֶרֶס מִצָּה עָלֶיהָ, הַזָּיָתוֹ פְסוּלָה. צְלוֹחִית שֶׁפִּיהָ צַר, טוֹבֵל וּמַעֲלֶה כְדַרְכּוֹ. רַבִּי יְהוּדָה אוֹמֵר, הַזָּיָה רִאשׁוֹנָה. מֵי חַטָּאת שֶׁנִּתְמַעֲטוּ, טוֹבֵל אֲפִלּוּ רָאשֵׁי גִבְעוֹלִין וּמַזֶּה, וּבִלְבַד שֶׁלֹּא יְסַפֵּג. נִתְכַּוֵּן לְהַזּוֹת לְפָנָיו וְהִזָּה לְאַחֲרָיו, לְאַחֲרָיו וְהִזָּה לְפָנָיו, הַזָּיָתוֹ פְסוּלָה. לְפָנָיו, וְהִזָּה עַל הַצְּדָדִין שֶׁלְּפָנָיו, הַזָּיָתוֹ כְשֵׁרָה. מַזִּין עַל הָאָדָם מִדַּעְתּוֹ וְשֶׁלֹּא מִדַּעְתּוֹ. מַזִּין עַל הָאָדָם וְעַל הַכֵּלִים, וַאֲפִלּוּ הֵן מֵאָה:

Mishnah Parah 12:3: If one intended to sprinkle on something that can retain impurity, and he sprinkled on something that cannot retain impurity, if there is [still some of the sanctified water] in the hyssop, he need not repeat [his dipping, before going to sprinkle the rest of the water onto other things or people]. If [one intended to sprinkle] onto something that cannot retain impurity, and he sprinkled on something that can retain impurity, [even] if there is [still some water] in the hyssop, he must repeat [his dipping, before sprinkling again]. If [one intended to sprinkle] onto a person, and he sprinkled onto an animal, if there is [still some of the sanctified water] in the hyssop, he need not repeat [his dipping]. If [he intended] onto an animal, and he sprinkled onto a person, [even] if there is [still some water] in the hyssop, he must repeat. The waters that drip [from the hyssop, if it was dipped for sprinkling onto something that cannot retain purity,] they are valid [for sprinkling, if they fall into a pure vessel, and if one then dips the hyssop into them for sprinkling]; therefore they cause impurity as chatat waters [which render impure those who carry or touch them].

נִתְכַּוֵּן לְהַזּוֹת עַל דָּבָר שֶׁהוּא מְקַבֵּל טֻמְאָה וְהִזָּה עַל דָּבָר שֶׁאֵינוֹ מְקַבֵּל טֻמְאָה, אִם יֵשׁ בָּאֵזוֹב, לֹא יִשְׁנֶה. עַל דָּבָר שֶׁאֵינוֹ מְקַבֵּל טֻמְאָה, וְהִזָּה עַל דָּבָר שֶׁמְּקַבֵּל טֻמְאָה, אִם יֵשׁ בָּאֵזוֹב, יִשְׁנֶה. עַל הָאָדָם, וְהִזָּה עַל הַבְּהֵמָה, אִם יֵשׁ בָּאֵזוֹב, לֹא יִשְׁנֶה. עַל הַבְּהֵמָה, וְהִזָּה עַל הָאָדָם, אִם יֵשׁ בָּאֵזוֹב, יִשְׁנֶה. הַמַּיִם הַמְנַטְּפִים, כְּשֵׁרִים. לְפִיכָךְ הֵם מְטַמְּאִין לְשֵׁם מֵי חַטָּאת: