The blessed one will bless you from the mouth of the Most High.
The man who blesses you will be blessed by God himself. A blessing that the man who blesses you says to the man who blesses you.
("And over its establishment and strengthening to be a helper for the truth and for the correction of the congregations, may He bless you from on high, and may all the plans of the congregations be sealed with it" - Shu't Abkat Rochel Sima'n Ro, and so on: "And the one who is good in the eye will bless you, and the one who blesses you will bless you from on high with many blessings and seven joys" - Pela Yo'etz/ Ot D', and so on: "Achash "H. Judah in his hands with love and said to him: "May you be blessed from the mouth of Elyon. May the Lord prolong your days in goodness and in pleasures" - Y. Burla/ Silvers, 259)
Translation
Expression (Hebrew)
הַמְּבָרֵךְ יְבֹרַךְ מִפִּי עֶלְיוֹן
Definition (Hebrew)
הָאָדָם שֶׁבֵּרֵךְ יִתְבָּרַךְ בְּעַצְמוֹ ע"י הָאֵל. בְּרָכָה שֶׁאוֹמֵר אוֹתָהּ הָאָדָם שְׁבוּרֵךְ לְאָדָם שֶׁבֵּרֵךְ.
("וְעַל הַמְּקַיְּמָהּ וְהַמַּחֲזִיקָה לִהְיוֹת עוֹזֵר לָאֱמֶת וּלְתִקּוּן הַקְּהִלּוֹת יְבֹרַךְ מִפִּי עֶלְיוֹן וְחָתְמוּ בָּהּ כָּל חֲשׁוּבֵי הַקְּהִלּוֹת"- שׁוּ"ת אַבְקַת רוֹכֵל סִימָן רוֹ, וְכֵן:"וְטוֹב עַיִן הוּא יְבָרֵךְ, וְהַמְּבָרֵךְ יְבֹרַךְ מִפִּי עֶלְיוֹן בְּרֹב בְּרָכוֹת וְשֹׂבַע שְׂמָחוֹת"-פֶּלֶא יוֹעֵץ/ אוֹת ד', וְכֵן:"אָחַז ח' יְהוּדָה בְּיָדָיו בְּחִבָּה וְאָמַר לוֹ:יְבֹרַךְ מִפִּי עֶלְיוֹן. יַאֲרִיךְ ה' יָמָיו בְּטוֹב וּבִנְעִימִים"- י.בּוּרְלָא/ כִּסּוּפִים, 259)