Jerusalem Talmud Taanit 3:8

משנה: וְעַל אֵילּוּ מַתְרִיעִין בַּשַּׁבָּת עַל עִיר שֶׁהִקִּיפוּהָ גוֹיִם אוֹ נָהָר וְעַל הַסְּפִינָה הַמִּיטָּרֶפֶת בַּיָּם. רִבִּי יוֹסֵי אוֹמֵר לְעֶזְרָה אֲבָל לֹא לִצְעָקָה. שִׁמְעוֹן הַתִּימְנִי אוֹמֵר אַף עַל הַדֶּבֶר וְלֹא הוֹדוּ לוֹ חֲכָמִים׃ MISHNAH: About the following one blows the shofar on a Sabbath: About a town surrounded by Gentiles⁸⁴Who come as enemies. or a river⁸⁵In a flood., and a ship in danger in the ocean. Rebbi Yose said, to help⁸⁶Blowing the shofar on a Sabbath is rabbinically forbidden; it only is permitted as a military signal to mobilize all available personnel in a situation where lives are at stake. but not to vociferation. Simeon from Timna says, also about an epidemic but the Sages did not agree with him⁸⁷Since the only people who can help are the doctors who certainly are already on duty..

הלכה: רַב אָמַר. עֲנֵ֤נִי י֙י עֲנֵ֔נִי. מַתְנִיתָא פְלִיגָא עַל רַב. רִבִּי יוֹסֵי אוֹמֵר לְעֶזְרָה אֲבָל לֹא לִצְעָקָה. וְהָא תַנָּייָא קַדְמִייָא סְבַר מֵימַר. אֲפִילוּ לִצְעָקָה. HALAKHAH: Rav said, answer me, Eternal, answer me⁸⁸1K. 18:37. According to the Taanit.14a">Babli 14a the reference is not to this verse but to the standard prayer on fast day, Taanit 3:2" href="/Jerusalem_Talmud_Taanit.3.2">Halakhah 2:2, Notes 107–108. He holds that one never sounds the shofar on the Sabbath for any reason whatsoever, but he permits penitentiary prayers on a Sabbath (which other authorities permit only on a Day of Atonement which is a Sabbath.). The Mishnah disagrees with Rav: “Rebbi Yose said, to help⁸⁶Blowing the shofar on a Sabbath is rabbinically forbidden; it only is permitted as a military signal to mobilize all available personnel in a situation where lives are at stake. but not to vociferation.” Therefore the first Tanna holds even for vociferation⁸⁹Since R. Yose must refer to shofar blowing, and the Mishnah brings his opinion as a modification of, not a contradiction to, the anonymous Tanna’s statement, it follows that the anonymous Mishnah refers to actual shofar blowing..

לֵוִי בֶּן סִיסִי בָאוּ הַגַּייְסוֹת לְעִירוֹ. נָטַל סֵפְר תּוֹרָה וְעָלָה לְרֹאשׁ הַגַּג. אָמַר. רִבּוֹן הָעוֹלָמִים. אִין בָּֽטְלִית חָדָא מִילָּה מִן הָדֵין סֵפֶר אוֹרַיְתָא ייַעֲלוּן לוֹן. וְאִין לָא יִיזְלוּן לוֹן. מִיַּד אִיתְבְּעוּן וְלָא אִשְׁתַּכְּחוּן. תַּלְמִידֵיהּ עֲבַד כֵּן. יָֽבְשָׁת יָדֵיהּ וְאָֽזְלוּן לוֹן. תַּלְמִיד תַּלְמִידֵיהּ עֲבַד כֵּן. לָא יָֽבְשָׁת יָדֵיהּ וְלָא אָֽזְלוּן לוֹן. לוֹמַר שֶׁאֵין שׁוֹטֶה נִפְגַּע וְלֹא בְשַׂר הַמֵּת מַרְגִּישׁ בָּאוּזְמֵל. Armies came against Levi ben Sisi’s town. He took a Torah scroll and climbed onto the roof. He said: Master of the worlds. If I neglected one word of this Torah scroll they may come; if not, they shall leave. Immediately they were looked for but not found. His student did the same; his hand was paralyzed and they left⁹⁰Not every holy man can claim the status of Levi ben Sisi.. His student’s student did the same; his hand was not paralyzed and they did not leave. To say that the idiot is not hurt and dead flesh does not feel the knife⁹¹A popular adage..