א רְחִיצָה כֵּיצַד, אָסוּר לִרְחֹץ כָּל גוּפוֹ, אֲפִלוּ בְּצוֹנֵן; אֲבָל פָּנָיו יָדָיו וְרַגְלָיו, בְּחַמִּין, אָסוּר; בְּצוֹנֵן, מֻתָּר. וְאִם הָיָה מְלֻכְלָךְ בְּטִּיט וְצוֹאָה, רוֹחֵץ כְּדַרְכּוֹ וְאֵינוֹ חוֹשֵׁשׁ. הַגָּה: וְכָל זֶה מִדִּינָא אֵינוֹ אָסוּר רַק שִׁבְעָה, אֲבָל אַחַר כָּךְ מֻתָּר בִּרְחִיצָה, אֶלָּא שֶׁנָּהֲגוּ הָאִדָּנָא לֶאֱסֹר כָּל רְחִיצָה כָּל ל' יוֹם (מהר"מ הִלְכוֹת שְׂמָחוֹת ובהגמי"י פ"ז מהל' י"ט ופ"י דהל' אֵבֶל); וַאֲפִלּוּ לָחֹף הָרֹאשׁ אָסוּר (לְקַמָּן סי' ש"צ ובא"ז); וְאֵין לְשַׁנּוֹת הַמִּנְהָג, כִּי מִנְהָג קָדוּם הוּא וְנִתְיַסֵּד עַל פִּי וָתִיקִין (א"ז בְּשֵׁם רַשְׁבָּ"א).
1 In what manner is bathing [forbidden]? — He is forbidden to bathe his whole body even in cold water, but his face, hands and feet he is forbidden [to wash] in warm water, [but] in cold water he is permitted. However, if he was soiled with mud or excrement, he may bathe in his usual way without any apprehension. Rema: And all this is forbidden legally only for seven [ days ], but subsequently he is permitted to bathe, only that nowadays it is the adopted practice to prohibit bathing throughout the thirty days, and even to cleanse the head is forbidden. And this custom should not be altered, for it is an ancient custom and was established by pious men.