בבא בתרא ו׳Bava Batra 6

Mishnah 3ג׳

הַמּוֹכֵר יַיִן לַחֲבֵרוֹ וְהֶחְמִיץ, אֵינוֹ חַיָּב בְּאַחֲרָיוּתוֹ. וְאִם יָדוּעַ שֶׁיֵּינוֹ מַחְמִיץ, הֲרֵי זֶה מִקַּח טָעוּת. וְאִם אָמַר לוֹ יַיִן מְבֻשָּׂם אֲנִי מוֹכֵר לְךָ, חַיָּב לְהַעֲמִיד לוֹ עַד הָעֲצֶרֶת. וְיָשָׁן, מִשֶּׁל אֶשְׁתָּקַד. וּמְיֻשָּׁן, מִשֶּׁל שָׁלֹשׁ שָׁנִים:

One who sold wine to his fellow and it turned sour is not responsible. But if it was known that his wine would [soon] turn sour, this is a mistaken purchase. If he had said to him, “It is spiced wine that I am selling to you," he must provide him with wine [that will last] until Shavuot. "[It is] old wine," - [it must be] from last year’s. "[It is] aged wine," - [it must be] from three-year-old [wine].

Mishnah 4ד׳

הַמּוֹכֵר מָקוֹם לַחֲבֵרוֹ לִבְנוֹת לוֹ בַיִת, וְכֵן הַמְקַבֵּל מֵחֲבֵרוֹ לִבְנוֹת לוֹ בֵית חַתְנוּת לִבְנוֹ וּבֵית אַלְמְנוּת לְבִתּוֹ, בּוֹנֶה אַרְבַּע אַמּוֹת עַל שֵׁשׁ, דִּבְרֵי רַבִּי עֲקִיבָא. רַבִּי יִשְׁמָעֵאל אוֹמֵר, רֶפֶת בָּקָר הוּא זֶה. הָרוֹצֶה לַעֲשׂוֹת רֶפֶת בָּקָר, בּוֹנֶה אַרְבַּע אַמּוֹת עַל שֵׁשׁ. בַּיִת קָטָן, שֵׁשׁ עַל שְׁמֹנֶה. גָדוֹל, שְׁמֹנֶה עַל עֶשֶׂר. טְרַקְלִין, עֶשֶׂר עַל עֶשֶׂר. רוּמוֹ כַּחֲצִי אָרְכּוֹ וְכַחֲצִי רָחְבּוֹ. רְאָיָה לַדָּבָר, הֵיכָל. רַבָּן שִׁמְעוֹן בֶּן גַּמְלִיאֵל אוֹמֵר, הַכֹּל כְּבִנְיַן הֵיכָל:

One who sells his fellow a place to build a house, and so, too, one who contracted with his fellow to build him a groom's-house for his son, or a widow’s house for his daughter, builds it four cubits by six - the words of Rabbi Akiva. Rabbi Yishmael says: That is a cattle-shed. One who wants to build a cattle-shed, builds it four by six. A small house—six by eight. A large house—eight by ten. A dining hall—ten by ten. The height - approximately half its length plus half its breadth. Proof of the matter? The Sanctuary. Rabban Shimon ben Gamliel says: Everything is like the construction of the Sanctuary?