מד כֹּהֵן, אַף עַל פִּי שֶׁהוּא פָּנוּי, נוֹשֵׂא אֶת כַּפָּיו. הַגָּה: וְיֵשׁ אוֹמְרִים דְּאֵינוֹ נוֹשֵׂא כַּפָּיו, דְּהַשָּׁרוּי בְּלֹא אִשָּׁה שָׁרוּי בְּלֹא שִׂמְחָה, וְהַמְבָרֵךְ יֵשׁ לוֹ לִהְיוֹת בְּשִׂמְחָה (מָרְדְּכַי פֶּרֶק הַקוֹרֵא עוֹמֵד); וְנָהֲגוּ שֶׁנּוֹשֵׂא כַּפָּיו, אַף עַל פִּי שֶׁאֵינוֹ נָשׂוּי, וּמִכָּל מָקוֹם הָרוֹצֶה שֶׁלֹּא לִשָּׂא כַּפָּיו אֵין מוֹחִין בְּיָדוֹ, רַק שֶׁלֹּא יְהֵא בְּבֵית הַכְּנֶסֶת בְּשָׁעָה שֶׁקּוֹרִין כֹּהֲנִים אוֹ אוֹמְרִים לָהֶם לִטֹּל יְדֵיהֶם. נָהֲגוּ בְּכָל מְדִינוֹת אֵלּוּ שֶׁאֵין נוֹשְׂאִים כַּפַּיִם אֶלָּא בְּיוֹם טוֹב, מִשּׁוּם שֶׁאָז שְׁרוּיִים בְּשִׂמְחַת יוֹם טוֹב, וְטוֹב לֵב הוּא יְבָרֵךְ; מַה שֶּׁאֵין כֵּן בִּשְׁאָר יָמִים, אֲפִלּוּ בְּשַׁבְּתוֹת הַשָּׁנָה, שֶׁטְּרוּדִים בְּהִרְהוּרִים עַל מִחְיָתָם וְעַל בִּטּוּל מְלַאכְתָּם; וַאֲפִלּוּ בְּיוֹם טוֹב, אֵין נוֹשְׂאִין כַּפַּיִם אֶלָּא בִּתְפִלַּת מוּסָף, שֶׁיּוֹצְאִים אָז מִבֵּית הַכְּנֶסֶת וְיִשְׂמְחוּ בְּשִׂמְחַת יוֹם טוֹב (דִּבְרֵי עַצְמוֹ). וְכָל שַׁחֲרִית וּמוּסָף שֶׁאֵין נוֹשְׂאִין בּוֹ כַּפַּיִם, אוֹמֵר הַשְּׁלִיחַ צִבּוּר: אֱלֹהֵינוּ וֵאלֹהֵי אֲבוֹתֵינוּ וְכו', כְּדִלְעֵיל סוֹף סי' קכ"ז; וְיוֹם הַכִּפּוּרִים, נוֹשְׂאִים בּוֹ כַּפַּיִם כְּמוֹ בְּיוֹם טוֹב, וְיֵשׁ מְקוֹמוֹת שֶׁנּוֹשְׂאִים בּוֹ כַּפַּיִם בַּנְּעִילָה, וְיֵשׁ מְקוֹמוֹת אֲפִלּוּ בְּשַׁחֲרִית.
44 A Kohen, even though he is single, lifts his hands [to perform the priestly blessing]. Rema: There are those that say that he should not lift his hands [to perform the priestly blessing], because one who dwells without a wife dwells without joy, and the one who blesses must be in a state of joy [Mordechai on Tractate Megillah chp. 4]. And our custom is that he lifts his hands even if he is not married. In any case, if he does not want to lift his hands, we do not protest, but he should not be in the synagogue when they call out "kohanim" or tell them to wash their hands. Our custom in these lands [of Ashkenaz] is that [the kohanim] do not lift their hands [to perform the priestly blessing] except on Yom Tov, because only then are they dwelling in the joy of Yom Tov, and the one who blesses must have a full heart. This is not the case on any other days, even on Shabbats throughout the year, when they are occupied by thoughts about their livelihood and about losing work. And even on Yom Tov, one does not lift one's hands [to perform the priestly blessing] except during Musaf, since they are about emerge from the synagogue and they rejoice in joy of Yom Tov [his own opinion]. And during every Shacharit and Musaf service in which they do not lift their hands [to perform the priestly blessing], the prayer leader says: "Our God and God of our ancestors," etc., as above at the end of siman 127. And on Yom Kippur they lift their hands [to perform the priestly blessing] just as on Yom Tov [that is, at Musaf], and there are places where they lift their hands at Ne'ilah, and there are places [where they lift their hands] even at Shacharit.