Kedumah 18 (2877) 152

וַיֹּאמֶר יְהוָה, אֶל-אַבְרָהָם: לָמָּה זֶּה צָחֲקָה שָׂרָה לֵאמֹר, הַאַף אֻמְנָם אֵלֵד--וַאֲנִי זָקַנְתִּי. הֲיִפָּלֵא מֵיְהוָה, דָּבָר; לַמּוֹעֵד אָשׁוּב אֵלֶיךָ, כָּעֵת חַיָּה--וּלְשָׂרָה בֵן. וַתְּכַחֵשׁ שָׂרָה לֵאמֹר לֹא צָחַקְתִּי, כִּי יָרֵאָה; וַיֹּאמֶר לֹא, כִּי צָחָקְתְּ. וַיָּקֻמוּ מִשָּׁם הָאֲנָשִׁים, וַיַּשְׁקִפוּ עַל-פְּנֵי סְדֹם; וְאַבְרָהָם--הֹלֵךְ עִמָּם, לְשַׁלְּחָם. וַיהוָה, אָמָר: הַמְכַסֶּה אֲנִי מֵאַבְרָהָם, אֲשֶׁר אֲנִי עֹשֶׂה. וְאַבְרָהָם--הָיוֹ יִהְיֶה לְגוֹי גָּדוֹל, וְעָצוּם; וְנִבְרְכוּ-בוֹ--כֹּל, גּוֹיֵי הָאָרֶץ. כִּי יְדַעְתִּיו, לְמַעַן אֲשֶׁר יְצַוֶּה אֶת-בָּנָיו וְאֶת-בֵּיתוֹ אַחֲרָיו, וְשָׁמְרוּ דֶּרֶךְ יְהוָה, לַעֲשׂוֹת צְדָקָה וּמִשְׁפָּט--לְמַעַן, הָבִיא יְהוָה עַל-אַבְרָהָם, אֵת אֲשֶׁר-דִּבֶּר, עָלָיו. וַיֹּאמֶר יְהוָה, זַעֲקַת סְדֹם וַעֲמֹרָה כִּי-רָבָּה; וְחַטָּאתָם--כִּי כָבְדָה, מְאֹד. אֵרְדָה-נָּא וְאֶרְאֶה, הַכְּצַעֲקָתָהּ הַבָּאָה אֵלַי עָשׂוּ כָּלָה; וְאִם-לֹא, אֵדָעָה. וַיִּפְנוּ מִשָּׁם הָאֲנָשִׁים, וַיֵּלְכוּ סְדֹמָה; וְאַבְרָהָם--עוֹדֶנּוּ עֹמֵד, לִפְנֵי יְהוָה. וַיִּגַּשׁ אַבְרָהָם, וַיֹּאמַר: הַאַף תִּסְפֶּה, צַדִּיק עִם-רָשָׁע. אוּלַי יֵשׁ חֲמִשִּׁים צַדִּיקִם, בְּתוֹךְ הָעִיר; הַאַף תִּסְפֶּה וְלֹא-תִשָּׂא לַמָּקוֹם, לְמַעַן חֲמִשִּׁים הַצַּדִּיקִם אֲשֶׁר בְּקִרְבָּהּ. חָלִלָה לְּךָ מֵעֲשֹׂת כַּדָּבָר הַזֶּה, לְהָמִית צַדִּיק עִם-רָשָׁע, וְהָיָה כַצַּדִּיק, כָּרָשָׁע; חָלִלָה לָּךְ--הֲשֹׁפֵט כָּל-הָאָרֶץ, לֹא יַעֲשֶׂה מִשְׁפָּט

Then Hashem said to Abraham, "Why is it that Sarah laughed, saying - 'Shall I in truth bear a child, though I have aged?' — Is anything beyond Hashem?! At the appointed time I will return to you at this time next year, and Sarah will have a son." Sarah denied it, saying, "I did not laugh," for she was frightened. But he said, "No, you laughed indeed." So the men got up from there, and gazed down toward Sodom, while Abraham walked with them to escort them. And Hashem said, "Shall I conceal from Abraham what I do, now that Abraham is surely to become a great and mighty nation, and all the nations of the earth shall bless themselves by him? For I have loved him, because he commands his children and his household after him that they keep the way of Hashem, doing charity and justice, in order that Hashem might then bring upon Abraham that which He had spoken of him." So Hashem said, "Because the outcry of Sodom and Gomorrah has become great, and because their sin has been very grave. I will descend and see - If they act in accordance with its outcry — then destruction! And if not, I will know." The men had turned from there and went to Sodom, while Abraham was still standing before Hashem. Abraham came forward and said, "Will You also stamp out the righteous along with the wicked? What if there should be fifty righteous people in the midst of the city? Would You still stamp it out rather than spare the place for the sake of the fifty righteous people within it? It would be sacrilege to You to do such a thing, to bring death upon the righteous along with the wicked; so the righteous will be like the wicked. It would be sacrilege to You! Shall the Judge of all the earth not do justice?"