זוהר, חקת ד׳Zohar, Chukat 4

Segment 4ד׳

וּנְתַתֶּם אוֹתָהּ אֶל אֶלְעָזָר, מִצְוָותָהּ בַּסְּגַן, וְאוֹקְמוּהָ. מַאי טַעְמָא לֵיהּ וְלָא לְאַהֲרֹן. אֶלָּא אַהֲרֹן שׁוּשְׁבִינָא דְּמַטְרוֹנִיתָא. וְעוֹד דְּאַהֲרֹן לָא אָתֵי מִסִּטְרָא דְּטָהוֹר, אֶלָּא (קע"ז ע"ב) מִסִּטְרָא דְּקָדוֹשׁ, וּבְגִין דְּדָא אַתְיָיא לְטָהֳרָה, לָא אִתְיְיהִיב לֵיהּ.

AND YE SHALL GIVE HER UNTO ELEAZAR THE PRIEST. Why to him and not to Aaron? Because Aaron was the friend of the Matrona, and also because Aaron came not from the side of Pure, but from the side of Holy; for only he is called pure who emerges out of impurity.

Segment 5ה׳

כָּל מִלָּה דְּהַאי פָּרָה, הִיא בְּשֶׁבַע, ז' כִּבּוּסִים וְכוּ', וְהָא (ע"ז ע"ב) אִתְּמַר, מַאי טַעְמָא. בְּגִין דְּהִיא שֶׁבַע שְׁנֵי שְׁמִטָּה, וּבַת שֶׁבַע אִתְקְרֵי, וְעַל דָּא כָּל עוֹבָדוֹי בְּשֶׁבַע. תָּא חֲזֵי, כָּל מַאי דְּאִתְעָבִיד מֵהַאי פָּרָה, בְּגִין לְדַכְּאָה, וְלָא לְקַדְּשָׁא, וְאַף עַל גַּב דְּאִתְיְיהִיב לַסְּגָן, הוּא לָא שָׁחִיט וְלָא שָׂרִיף, בְּגִין דְּלָא יִשְׁתְּכַּח דִּינָא בְּסִטְרוֹי, וְכָּל שֶׁכֵּן אַהֲרֹן דְּאִיהוּ בְּדַרְגָּא שְׁלִים יַתִּיר, דְּלָא בָּעֵי לְאִשְׁתַּכְּחָא תַּמָּן, וּלְאִזְדַּמְּנָא תַּמָּן.

5. Every item that pertains to this cow, WHICH IS MALCHUT, is in seven, seven washings. And we were already taught that. What is the reason? It is because MALCHUT is the seven years of the Sabbatical year THAT CONTAINS SEVEN SEFIROT - CHESED, GEVURAH, TIFERET, NETZACH, HOD, YESOD AND MALCHUT, and is called 'Bathsheba' (lit. 'Daughter of Seven'). Therefore, all her rituals are in seven. Come and behold: all that is made from this cow is for the purpose of purification and not for sanctification. Although it was given to an aid OF THE PRIEST, THAT IS, ELAZAR, he does not perform the slaughtering or the burning so that no Harsh Judgment will be at his aspect. Even more so for Aaron, who is in a more perfected level THAN ELAZAR. He need not present himself or be available there.