הלכות שבת כ״בSabbath 22

Halacha 1א׳

רְדִיַּת הַפַּת אַף עַל פִּי שֶׁאֵינָהּ מְלָאכָה אָסְרוּ אוֹתָהּ חֲכָמִים שֶׁמָּא יָבוֹא לֶאֱפוֹת. הַמַּדְבִּיק פַּת בַּתַּנּוּר מִבְּעוֹד יוֹם וְקָדַשׁ עָלָיו הַיּוֹם מַצִּיל מִמֶּנָּה מָזוֹן שָׁלֹשׁ סְעֻדּוֹת וְאוֹמֵר לַאֲחֵרִים בּוֹאוּ וְהַצִּילוּ לָכֶם. וְאַף עַל פִּי שֶׁהָרְדִיָּה אֵינָהּ מְלָאכָה כְּשֶׁהוּא מַצִּיל לֹא יִרְדֶּה בְּמִרְדֶּה אֶלָּא בְּסַכִּין כְּדֵי לְשַׁנּוֹת:

Even though it is not a forbidden type of work, the Sages forbade peeling off bread [from an oven wall], lest one come to baking. [In the case of] one who affixed bread to an oven while it was still day and the day became sanctified upon him (Shabbat began)—he may save [enough bread] for three meals and say to others, "Come and save [bread] for yourselves." And even though peeling is not a forbidden type of work, he may not peel with a bread peel when he saves it but rather with a knife in order to modify [the process from its usual way].

Halacha 2ב׳

מִפְּנֵי מָה אָסְרוּ חֲכָמִים לִכָּנֵס בַּמֶּרְחָץ בְּשַׁבָּת. מִפְּנֵי הַבַּלָּנִין שֶׁהָיוּ מְחִמִּין חַמִּין בְּשַׁבָּת וְאוֹמְרִין מֵעֶרֶב שַׁבָּת הוּחַמּוּ. לְפִיכָךְ גָּזְרוּ שֶׁלֹּא יִכָּנֵס אָדָם לַמֶּרְחָץ בְּשַׁבָּת אֲפִלּוּ לְהַזִּיעַ. וְגָזְרוּ שֶׁלֹּא יִשְׁתַּטֵּף כָּל גּוּפוֹ בְּחַמִּין וַאֲפִלּוּ בְּחַמִּין שֶׁהוּחַמּוּ מֵעֶרֶב שַׁבָּת. אֲבָל פָּנָיו יָדָיו וְרַגְלָיו מֻתָּר. בַּמֶּה דְּבָרִים אֲמוּרִים בְּחַמֵּי הָאוּר גְּזֵרָה מִשּׁוּם מֶרְחָץ. אֲבָל בְּחַמֵּי טְבֶרְיָא וְכַיּוֹצֵא בָּהֶן מֻתָּר לְהִשְׁתַּטֵּף בָּהֶן כָּל גּוּפוֹ. וְאָסוּר לִרְחֹץ בְּמַיִם חַמִּין שֶׁבַּמְּעָרוֹת מִפְּנֵי שֶׁהַמְּעָרָה יֵשׁ בָּהּ הֶבֶל וְיָבוֹא לִידֵי זֵעָה וְנִמְצֵאת כְּמֶרְחָץ:

For what [reason] did the Sages forbid entering a bathhouse on Shabbat? Because of the bath operators that would heat hot water on Shabbat and say it was heated from the eve of Shabbat. Hence they decreed that a man not enter a bathhouse on Shabbat, even to perspire. And they [also] decreed that one may not rinse his entire body with hot water, even if it was heated from the eve of Shabbat. But it is permissible [to rinse] his face, his hands and his feet. To what are these words applicable? To hot water [heated by] fire, [as a] decree on account of a bathhouse. But it is permissible to rinse his entire body with the hot [spring] waters of Tiberius, and that which is similar to it. However it is forbidden to bathe in hot [spring] waters in a cave, because there is vapor in a cave. So one comes to perspiring, and it comes out [being] like a bathhouse.

Halacha 3ג׳

מִתְחַמֵּם אָדָם כְּנֶגֶד הַמְּדוּרָה וְיוֹצֵא וּמִשְׁתַּטֵּף כָּל גּוּפוֹ בְּצוֹנֵן. אֲבָל אֵינוֹ מִשְׁתַּטֵּף כָּל גּוּפוֹ בְּצוֹנֵן וּמִתְחַמֵּם כְּנֶגֶד הַמְּדוּרָה מִפְּנֵי שֶׁמַּפְשִׁיר מַיִם שֶׁעָלָיו וְנִמְצָא כְּרוֹחֵץ כָּל גּוּפוֹ בְּחַמִּין. הַמֵּבִיא סִילוֹן שֶׁל צוֹנֵן בְּתוֹךְ מַיִם חַמִּין אֲפִלּוּ בְּתוֹךְ חַמֵּי טְבֶרְיָא הֲרֵי אֵלּוּ כְּחַמִּין שֶׁהוּחַמּוּ בְּשַׁבָּת וַאֲסוּרִין בִּרְחִיצָה וּבִשְׁתִיָּה:

One may warm himself up across from a bonfire and go out to rinse all of his body with cold [water]. But he may not rinse his entire body with cold [water] and warm himself up across from a bonfire. Since he thaws the water on himself, it comes out as if he is bathing his entire body in a bathhouse. [In the case of] one who passes a pipe of cold [water] through hot water—even through the hot [spring] waters of Tiberius—[its water] is surely [considered] like water heated on Shabbat, so it is forbidden for bathing and drinking.