הַמְּלָאכָה פּוֹסֶלֶת בְּמַיִם קֹדֶם שֶׁיִּתְקַדְּשׁוּ וְאֵינָהּ פּוֹסֶלֶת בְּהַזָּאָה. וּדְבָרִים אֵלּוּ הֵן דִּבְרֵי קַבָּלָה. כֵּיצַד. הַמְמַלֵּא מַיִם לְקִדּוּשׁ וְנִתְעַסֵּק בִּמְלָאכָה אַחֶרֶת בִּשְׁעַת הַמִּלּוּי אוֹ בִּשְׁעַת הוֹלָכַת הַמַּיִם שֶׁמְּמַלֵּא אוֹ בְּעֵת שֶׁמְּעָרֶה אוֹתָן מִכְּלִי אֶל כְּלִי פְּסָלָן. לְעוֹלָם הַמְּלָאכָה פּוֹסֶלֶת בְּמַיִם עַד שֶׁיָּטִיל לָהֶן אֶת הָאֵפֶר. הֵטִיל אֶת הָאֵפֶר וְנִתְקַדְּשׁוּ וְנַעֲשׂוּ מֵי נִדָּה אֵין הַמְּלָאכָה פּוֹסֶלֶת בָּהֶן אֶלָּא הַמּוֹלִיךְ הַמַּיִם הַמֻּקְדָּשִׁין אוֹ מְעָרֶה אוֹתָן מִכְּלִי לִכְלִי וְהוּא עוֹסֵק בִּמְלָאכָה אַחֶרֶת אֵין בְּכָךְ כְּלוּם. וְכֵן מַזֶּה מֵהֶן בְּיָדוֹ אַחַת וְהוּא עוֹשֶׂה מְלָאכָה בְּיָדוֹ הָאַחֶרֶת:
The performance of work disqualifies water that was drawn for the ashes of the red heifer before it is sanctified, but it does not disqualify the sprinkling of the ashes. These rulings are stated in the Oral Tradition. What is implied? If one draws water for sanctification with the ashes and was involved with another activity while drawing it, carrying the water that was drawn, or pouring it from one container to another, he disqualifies it. The performance of an activity disqualifies the water until the ashes are placed on it. If one placed the ashes on the water and sanctified it, causing it to be fit for sprinkling, the performance of another activity does not disqualify it. If one carries sanctified water from place to place or pours it from one container to another while being occupied with another activity, it is of no consequence. This also applies if one sprinkles it with one hand and performs an activity with the other hand.
