ב אָבֵל, שָׁבוּעַ הָרִאשׁוֹן אֵינוֹ יוֹצֵא מִפֶּתַח בֵּיתוֹ, וַאֲפִלוּ לִשְׁמֹעַ בִּרְכוֹת חֻפָּה אוֹ בִּרְכוֹת הַמִּילָה. הַגָּה: מִיהוּ הַמֵּקֵל לָצֵאת בַּלַּיְלָה, מִפְּנֵי הַצֹּרֶךְ, לֹא הִפְסִיד (ת"ה סִימָן ר"צ). וְהָא דְּאָסוּר לָצֵאת חוּץ לְבֵיתוֹ, הַיְנוּ דַּוְקָא לְטַיֵּל, אוֹ לְמַשָּׂא וּמַתָּן וְכַדּוֹמֶה, אֲבָל אִם שָׁלַח מוֹשֵׁל אַחֲרָיו (מָרְדְּכַי ה"א) אוֹ שֶׁצָּרִיךְ לֵילֵךְ בַּדֶּרֶךְ אוֹ לִשְׁאָר דְּבָרִים הַצְּרִיכִים לוֹ הַרְבֵּה, כְּגוֹן דָּבָר הָאָבֵד, מֻתָּר לוֹ לָצֵאת (תּוֹסָפוֹת סוֹף מ"ק), וְכֵן נוֹהֲגִין. וְדִין נְעִילַת סַנְדָּלָיו, עַיֵּן לְעֵיל סִימָן שפ"ב. שְׁנִיָּה, יוֹצֵא וְאֵינוֹ יוֹשֵׁב בִּמְקוֹמוֹ וְאֵינוֹ מְדַבֵּר; שְׁלִישִׁית, יוֹשֵׁב בִּמְקוֹמוֹ וְאֵינוֹ מְדַבֵּר. הַגָּה: וְאִם רוֹצֶה שֶׁלֹּא לֵישֵׁב בִּמְקוֹמוֹ בְּשָׁבוּעַ שְׁלִישִׁית וּלְדַבֵּר, הָרְשׁוּת בְּיָדוֹ (הגמי"י). וְעַכְשָׁו נוֹהֲגִין שֶׁאֵין יוֹשְׁבִין בִּמְקוֹמָם כָּל שְׁלֹשִׁים; וְעַל אָבִיו וְאִמּוֹ כָּל י"ב חֹדֶשׁ, וְאֵין לְמִנְהָג זֶה עִקָּר, מִכָּל מָקוֹם אֵין לְשַׁנּוֹת מִן הַמִּנְהָג, כִּי כָּל מָקוֹם לְפִי מִנְהָגוֹ; רְבִיעִית, הֲרֵי הוּא כִּשְׁאָר כָּל אָדָם. אֲפִלוּ לֹא שָׁלְמוּ שְׁלֹשָׁה שְׁבוּעוֹת, כְּגוֹן שֶׁמֵּת בְּאֶמְצַע שָׁבוּעַ, מִיָּד כְּשֶׁכָּלָה אוֹתוֹ שָׁבוּעַ וּשְׁנַיִם שֶׁאַחֲרָיו, חָשׁוּב שָׁבוּעַ הַבָּא רְבִיעִית.
2 A mourner during the first week [of mourning] does not leave the door of his house, even to hear the benedictions of the marriage ceremony or the benedictions of the circumcision ceremony. Rema: But one who adopts a lenient view, [ viz.,] to go out at night because of necessity, loses nothing; and as to the fact that he is forbidden to leave his house, it applies only to walking about [ at leisure ], or to engage in business or the like, but if a ruler summoned him, or where he must go on the road, or for other pressing matters that require him, e.g., a matter [ which, if postponed ] will entail an irretrievable loss, he is permitted to go out. And thus is the accepted custom. As to the law with respect to wearing shoes, v. supra § 38 The second week [of mourning] he goes out but does not sit in his [customary] place [in the Synagogue], nor does he engage in conversation. The third week [of mourning] he may sit in his place but does not engage in conversation. Rema: However, if he desires not to sit in his [ customary ] place during the third week [ of mourning ], but [ he desires ] to engage in conversation, he has the right to do so. And now the accepted practice is that one does not sit in one's [ customary ] place [ in the Synagogue ] for the entire thirty days [ of mourning ], and [ one in mourning ] for his father and mother, — for the entire twelve months [ of mourning ]. However, this custom has no fundamental basis. Yet, one should not change from the accepted practice, — for every locality [ should act ] in accordance with its adopted custom. The fourth week [of mourning] he is like any other person, even if the first three weeks [of mourning] were not complete, e.g., [in a case] where the person died in the middle of the week, — [the law is that] as soon as that week and two [more] weeks following it, ended, the next week is considered the fourth.