The Rambam · Sefer Madda
הלכות דעות ז׳Human Dispositions 7
Chapter 7 of 7 in Human Dispositions — 8 halachot
Halacha 1א׳
הַמְרַגֵּל בַּחֲבֵרוֹ עוֹבֵר בְּלֹא תַּעֲשֶׂה שֶׁנֶּאֱמַר (ויקרא יט טז) "לֹא תֵלֵךְ רָכִיל בְּעַמֶּיךָ". וְאַף עַל פִּי שֶׁאֵין לוֹקִין עַל דָּבָר זֶה עָוֹן גָּדוֹל הוּא וְגוֹרֵם לַהֲרֹג נְפָשׁוֹת רַבּוֹת מִיִּשְׂרָאֵל. לְכָךְ נִסְמָךְ לוֹ (ויקרא יט טז) "וְלֹא תַעֲמֹד עַל דַּם רֵעֶךָ". צֵא וּלְמַד מָה אֵרַע לְדוֹאֵג הָאֲדֹמִי:
One who spies on his fellow transgresses a negative commandment, as it states (Leviticus 19:27), "Do not go talebearing among your people." And even though we do not give lashes on the thing, it is a great transgression and it causes the killing of many souls in Israel. Therefore, it is adjacent [in the same verse] to, "do not stand upon the blood of your neighbor." Go out and learn [this] from that which happened to Deog the Edomite.
Halacha 2ב׳
אֵי זֶהוּ רָכִיל. זֶה שֶׁטּוֹעֵן דְּבָרִים וְהוֹלֵךְ מִזֶּה לָזֶה וְאוֹמֵר כָּךְ אָמַר פְּלוֹנִי כָּךְ וְכָךְ שָׁמַעְתִּי עַל פְּלוֹנִי. אַף עַל פִּי שֶׁהוּא אֱמֶת הֲרֵי זֶה מַחֲרִיב אֶת הָעוֹלָם. יֵשׁ עָוֹן גָּדוֹל מִזֶּה עַד מְאֹד וְהוּא בִּכְלַל לָאו זֶה וְהוּא לָשׁוֹן הָרַע. וְהוּא הַמְסַפֵּר בִּגְנוּת חֲבֵרוֹ אַף עַל פִּי שֶׁאוֹמֵר אֱמֶת. אֲבָל הָאוֹמֵר שֶׁקֶר נִקְרָא מוֹצִיא שֵׁם רַע עַל חֲבֵרוֹ. אֲבָל בַּעַל לָשׁוֹן הָרַע זֶה שֶׁיּוֹשֵׁב וְאוֹמֵר כָּךְ וְכָךְ עָשָׂה פְּלוֹנִי וְכָךְ וְכָךְ הָיוּ אֲבוֹתָיו וְכָךְ וְכָךְ שָׁמַעְתִּי עָלָיו וְאָמַר דְּבָרִים שֶׁל גְּנַאי. עַל זֶה אָמַר הַכָּתוּב (תהילים יב ד) "יַכְרֵת ה' כָּל שִׂפְתֵי חֲלָקוֹת לָשׁוֹן מְדַבֶּרֶת גְּדֹלוֹת":
Who is a talebearer (rachil)? One who carries things and goes from one to another and says, "So did x say, such and such did I hear about x." Even though it is the truth, he destroys the world. There is a much greater sin than this - and it is included in this negative commandment - and that is evil speech (lashon hara). And that is the one who speaks disparagingly about his fellow, even though it is true. But one who speaks falsely is called the producer of a bad reputation (motzi shem ra) about his fellow. But about this master of evil speech that sits and says, "X did so and so; so and so were his ancestors; so and so did I hear about him," and says disparaging things - about this one, the verse states (Psalms 12:4), "May the Lord cut off all flattering lips, every tongue that speaks arrogance."
Halacha 3ג׳
אָמְרוּ חֲכָמִים שָׁלֹשׁ עֲבֵרוֹת נִפְרָעִין מִן הָאָדָם בָּעוֹלָם הַזֶּה וְאֵין לוֹ חֵלֶק לָעוֹלָם הַבָּא. עֲבוֹדַת כּוֹכָבִים וְגִלּוּי עֲרָיוֹת וּשְׁפִיכוּת דָּמִים. וְלָשׁוֹן הָרַע כְּנֶגֶד כֻּלָּם. וְעוֹד אָמְרוּ חֲכָמִים כָּל הַמְסַפֵּר בְּלָשׁוֹן הָרַע כְּאִלּוּ כּוֹפֵר בָּעִקָּר. שֶׁנֶּאֱמַר (תהילים יב ה) "אֲשֶׁר אָמְרוּ לִלְשֹׁנֵנוּ נַגְבִּיר שְׂפָתֵינוּ אִתָּנוּ מִי אָדוֹן לָנוּ". וְעוֹד אָמְרוּ חֲכָמִים שְׁלֹשָׁה לָשׁוֹן הָרַע הוֹרֶגֶת. הָאוֹמְרוֹ. וְהַמְקַבְּלוֹ. וְזֶה שֶׁאוֹמֵר עָלָיו. וְהַמְקַבְּלוֹ יוֹתֵר מִן הָאוֹמְרוֹ:
The sages said (Yerushalmi Peah 1:1) there are three sins [for which] people are punished in this world and have no share in the world to come: Idolatry, forbidden sexual relations and bloodshed. And evil speech is equal to them all. And the sages also said (Yerushalmi Peah 1:1) that anyone who speaks evil speech is a heretic, as it states (Psalms 12:5), "They say, 'By our tongues we shall prevail; with lips such as ours, who can be our master?'” And the sages also said (Arakhin 15b) [that] evil speech kills three people: The person who said it, the person who hears it, and the person who it was said about. And the person who hears it more so than the person who says it.
Mishneh Torah, Torat Emet 363 edition, via Sefaria — public domain
English: Sefaria Community Translation — CC0