(א) כְּשֵׁם שֶׁהַמַּיִם בּוֹדְקִין אוֹתָהּ, כָּךְ הַמַּיִם בּוֹדְקִין אוֹתוֹ, שֶׁנֶּאֱמַר (במדבר ה) וּבָאוּ, וּבָאוּ. כְּשֵׁם שֶׁאֲסוּרָה לַבַּעַל, כָּךְ אֲסוּרָה לַבּוֹעֵל, שֶׁנֶּאֱמַר (שם) נִטְמְאָה, וְנִטְמָאָה, דִּבְרֵי רַבִּי עֲקִיבָא. אָמַר רַבִּי יְהוֹשֻׁעַ, כָּךְ הָיָה דוֹרֵשׁ זְכַרְיָה בֶן הַקַּצָּב. רַבִּי אוֹמֵר, שְׁנֵי פְעָמִים הָאֲמוּרִים בַּפָּרָשָׁה אִם נִטְמְאָה נִטְמָאָה, אֶחָד לַבַּעַל וְאֶחָד לַבּוֹעֵל:
(ב) בּוֹ בַּיּוֹם דָּרַשׁ רַבִּי עֲקִיבָא, (ויקרא יא) וְכָל כְּלִי חֶרֶשׂ אֲשֶׁר יִפֹּל מֵהֶם אֶל תּוֹכוֹ כֹּל אֲשֶׁר בְּתוֹכוֹ יִטְמָא, אֵינוֹ אוֹמֵר טָמֵא אֶלָּא יִטְמָא, לְטַמֵּא אֲחֵרִים, לִמֵּד עַל כִּכָּר שֵׁנִי שֶׁמְּטַמֵּא אֶת הַשְּׁלִישִׁי. אָמַר רַבִּי יְהוֹשֻׁעַ, מִי יְגַלֶּה עָפָר מֵעֵינֶיךָ, רַבָּן יוֹחָנָן בֶּן זַכַּאי, שֶׁהָיִיתָ אוֹמֵר, עָתִיד דּוֹר אַחֵר לְטַהֵר כִּכָּר שְׁלִישִׁי, שֶׁאֵין לוֹ מִקְרָא מִן הַתּוֹרָה שֶׁהוּא טָמֵא. וַהֲלֹא עֲקִיבָא תַּלְמִידְךָ מֵבִיא לוֹ מִקְרָא מִן הַתּוֹרָה שֶׁהוּא טָמֵא, שֶׁנֶּאֱמַר, כֹּל אֲשֶׁר בְּתוֹכוֹ יִטְמָא:
(ג) בּוֹ בַיּוֹם דָּרַשׁ רַבִּי עֲקִיבָא (במדבר לה) וּמַדֹּתֶם מִחוּץ לָעִיר אֶת פְּאַת קֵדְמָה אַלְפַּיִם בָּאַמָּה וְגוֹ', וּמִקְרָא אַחֵר אוֹמֵר (שם) מִקִּיר הָעִיר וָחוּצָה אֶלֶף אַמָּה סָבִיב. אִי אֶפְשָׁר לוֹמַר אֶלֶף אַמָּה, שֶׁכְּבָר נֶאֱמַר אַלְפַּיִם אַמָּה, וְאִי אֶפְשָׁר לוֹמַר אַלְפַּיִם אַמָּה, שֶׁכְּבָר נֶאֱמַר אֶלֶף אַמָּה. הָא כֵיצַד, אֶלֶף אַמָּה מִגְרָשׁ, וְאַלְפַּיִם אַמָּה תְּחוּם שַׁבָּת. רַבִּי אֱלִיעֶזֶר בְּנוֹ שֶׁל רַבִּי יוֹסֵי הַגְּלִילִי אוֹמֵר, אֶלֶף אַמָּה מִגְרָשׁ, וְאַלְפַּיִם אַמָּה שָׂדוֹת וּכְרָמִים:
(1) Just as the water checks her [the woman], so does the water check him [the man], as it says, (Numbers 5:22, 5:27) "and it shall enter," "and it shall enter" (Numbers 5:22, 5:27) Just as she is forbidden to her husband, so she is also forbidden to the cuckolder, as it says, "is defiled", "and is defiled" (Numbers 5:27, 5:29) These are the words of Rabbi Akiva. Rabbi Yehoshua says, thus would Rabbi Zechariah ben HaKatzav expound. Rebbi says, two times it is said in the section: "if she is defiled," "she is defiled," one for the husband, and one for the cuckolder.
(2) On that day [the day Rabban Gamliel was deposed from the position of Prince] Rabbi Akiva expounded, "any earthenware vessel into which any of them fall, whatever is within it shall become impure" (Leviticus 11:33) It does not say "impure" but "becomes impure" -- thus it makes others impure. This teaches that a loaf of second-degree impurity can make impure a loaf to the third-degree. Rabbi Yehoshua said, who will remove the dirt from your eyes Rabban Yochanan ben Zakkai? You used to say that in the future another generation will purify a third-degree loaf, because there is no verse from the Torah that makes it impure. Now behold, Akiva your student brings a verse from the Torah that it is impure! As it says, "all that is in it becomes impure."
(3) On that day, Rabbi Akiva expounded [the verse], (Numbers 35:5) "You shall measure outside the city on the eastern outskirts, two thousand cubits..." (Numbers 35:5), and another verse says (Numbers 35:4) "... from the wall of the city and outward, 1000 cubits around." It is impossible to say one thousand cubits, for it already said two thousand cubits, and it is impossible to say two thousand cubits, for it already said 1000 cubits. How does it work? One-thousand cubits is for the open land, and two thousand cubits is the Sabbath border [the distance one can travel from the city on Sabbath]." Rabbi Eliezer, son of Rabbi Yosi the Galilian says, one thousand cubits is for the open land, and two thousand cubits is for fields and orchards.