זֶה שֶׁאָמַר הַכָּתוּב (דברי הימים א ח, ח): וְשַׁחֲרַיִם הוֹלִיד בִּשְׂדֵה מוֹאָב, אֵלִיָּהוּ זָכוּר לַטּוֹב שָׁאַל אֶת רַבִּי נְהוֹרַאי אֲמַר לֵיהּ מַה דֵּין דִּכְתִיב וְשַׁחֲרַיִם הוֹלִיד בִּשְׂדֵה מוֹאָב, אֲמַר לֵיהּ גָּדוֹל שֶׁהוֹלִיד בִּשְׂדֵה מוֹאָב, מִן שִׁלְחוֹ אֹתָם, שֶׁהָיוּ מִשֵּׁבֶט בִּנְיָמִין, דִּכְתִיב (שופטים כ, יב): וַיִּשְׁלְחוּ שִׁבְטֵי יִשְׂרָאֵל אֲנָשִׁים בְּכָל שִׁבְטֵי בִנְיָמִין לֵאמֹר, דָּבָר אַחֵר, וְשַׁחֲרַיִם, זֶה בֹּעַז, וְלָמָּה נִקְרָא שְׁמוֹ שַׁחֲרַיִם, שֶׁהָיָה מְשֻׁחְרָר מִן הָעֲווֹנוֹת. הוֹלִיד בִּשְׂדֵה מוֹאָב, שֶׁהוֹלִיד מֵרוּת הַמּוֹאֲבִיָה. מִן שִׁלְחוֹ, שֶׁהָיָה מִשֵּׁבֶט יְהוּדָה, שֶׁנֶּאֱמַר (בראשית מו, כח): וְאֶת יְהוּדָה שָׁלַח לְפָנָיו אֶל יוֹסֵף. (דברי הימים א ח, ח): חוּשִׁים וְאֶת בַּעֲרָא נָשָׁיו, וְיֵשׁ אָדָם מוֹלִיד נָשָׁיו, אֶלָּא שֶׁחָשׁ כַּנָּמֵר וּבֵאַר אֶת הַהֲלָכָה עַמּוֹנִי וְלֹא עַמּוֹנִית, מוֹאָבִי וְלֹא מוֹאָבִית. וַיּוֹלֶד מִן חֹדֶשׁ אִשְׁתּוֹ. לֹא צוֹרְכָהּ אֶלָּא וַיּוֹלֶד מִן בַּעֲרָא אִשְׁתּוֹ, אֶלָּא בְּיָמָיו נִתְחַדְּשָׁה הֲלָכָה עַמּוֹנִי וְלֹא עַמּוֹנִית מוֹאָבִי וְלֹא מוֹאָבִית. כָּתוּב אֶחָד אוֹמֵר (דברי הימים א ב, יז): יִתְרָא הַיִּשְׁמְעֵאלִי, וְכָתוּב אֶחָד אוֹמֵר (שמואל ב יז, כה): יִתְרָא הַיִּשְׂרְאֵלִי, רַבִּי יְהוֹשֻׁעַ בֶּן לֵוִי אָמַר הוּא יִתְרָא הַיִּשְׂרְאֵלִי הוּא יִתְרָא הַיִּשְׁמְעֵאלִי. רַבִּי שְׁמוּאֵל בַּר נַחְמָן וְרַבָּנָן, רַבִּי שְׁמוּאֵל אָמַר יִשְׁמְעֵאלִי הָיָה וְאַתְּ אֲמַרְתְּ יִשְׂרְאֵלִי, אֶלָּא יִשְׁמְעֵאלִי הָיָה וְנִכְנַס לְבֵית הַמִּדְרָשׁ וּמְצָאוֹ לְיִשַּׁי יוֹשֵׁב וְדוֹרֵשׁ כֵּן (ישעיה מה, כב): פְּנוּ אֵלַי וְהִוָּשְׁעוּ כָּל אַפְסֵי אָרֶץ וגו', נִתְגַּיֵּר וְנָתַן לוֹ בִּתּוֹ. רַבָּנָן אָמְרִין יִשְׂרְאֵלִי הָיָה וְאַתְּ אֲמַרְתְּ יִשְׁמְעֵאלִי, אֶלָּא יִשְׂרְאֵלִי הָיָה וְחָגַר חַרְבּוֹ כְּיִשְׁמְעֵאלִי וְנָעַץ הַחֶרֶב בְּאֶמְצַע בֵּית הַמִּדְרָשׁ וְאָמַר אוֹ אֶהֱרֹג אוֹ אֶהָרֵג עַד שֶׁאֲנִי מְקַיֵּם הֲלָכָה לָרַבִּים שֶׁכָּל שֶׁיְבַטֵּל הֲלָכָה זוֹ בַּחֶרֶב הַזֹּאת אֲנִי מַתִּיז אֶת רֹאשׁוֹ, עַמּוֹנִי וְלֹא עַמּוֹנִית מוֹאָבִי וְלֹא מוֹאָבִית.
Regarding that which the verse states: “Shaḥarayim begot children in the field of Moav [after he had sent them away, Ḥushim and Baara his wives]” (I Chronicles 8:8), Elijah, of blessed memory, asked Rabbi Nehorai, he said to him: ‘What is this that is written: “Shaḥarayim begot in the field of Moav”?’ [Rabbi Nehorai] said to him: ‘A great man begot in the field of Moav.’ “After he had sent them away” (I Chronicles 8:8) – as they were from the tribe of Benjamin, as it is written: “The tribes of Israel sent men through all the tribe of Benjamin, saying” (Judges 20:12). Another interpretation, “Shaḥarayim,” this is Boaz. Why was his name called Shaḥarayim? It is because he was free [meshuḥrar] of iniquities. “Begot in the field of Moav,” as he begot from Ruth the Moavite. “After he had sent them away,” as he was from the tribe of Judah, as it is stated: “And he sent Judah before him to Joseph” (Genesis 46:28). “Ḥushim and Baara his wives,” does a man beget his wives? Rather, he was swift like a leopard and articulated the halakha: An Amonite but not an Amonite woman, a Moavite but not a Moavite woman. “He begot from Ḥodesh his wife” (I Chronicles 8:9) – it should have stated only, “from Baara his wife.” Rather, in his days, the halakha of an Amonite but not an Amonite woman, a Moavite and not a Moavite woman, was introduced [nitḥadsha]. One verse says: “Yitra the Ishmaelite” (see I Chronicles 2:17), and one verse says: “Yitra the Israelite” (II Samuel 17:25). Rabbi Yehoshua ben Levi said: He is Yitra the Ishmaelite, he is Yitra the Israelite. Rabbi Shmuel bar Naḥman and the Rabbis: Rabbi Shmuel said: He was an Ishmaelite, and you say Israelite? Rather, he was an Ishmaelite. He entered the study hall and found Yishai sitting and expounding thus: “Look to Me, and be saved, all the ends of the earth…” (Isaiah 45:22). He converted, and [Yishai] gave him his daughter. The Rabbis say: He was an Israelite, and you say Ishmaelite? Rather, he was an Israelite and he girded his sword like an Ishmaelite. He stuck his sword in the middle of the study hall and said: I will either kill or be killed until I establish the halakha for the multitudes, so that anyone who abrogates this halakha, I will behead him with this sword: An Amonite but not an Amonite woman, a Moavite and not a Moavite woman.