Baba Basra 6:3-4

Baba Basra 6:3

If one person sells wine to another and it goes sour, the seller is not held responsible. If the seller’s wine was known to sour, it is an invalid sale (and can be reversed by the buyer). If the seller specified that he was selling the buyer spiced wine (which normally lasts longer), he must give him wine that’s good until Shavuos (after which, the summer heat may spoil it). “Old wine” must be at least from the previous year and “aged wine” must be at least three years old.

Baba Basra 6:4

If one person sells another a plot of land to build a house, and similarly, one who accepts a job to build someone else a house for his newlywed son or for his widowed daughter, he builds four cubits by six (about 6’ x 9’); this is the opinion of Rabbi Akiva. Rabbi Yishmael says that four by six is the size of a cattle stall (but too small for a house). A small house is six by eight (about 9’ x 12’) and a large house is eight by ten (about 12’ x 15’); a hall is ten by ten (about 15’ x 15’). The height of such a building is half the sum of its length plus its breadth. The proof of this comes from the Sanctuary of the Temple (the Heichal, which was 20x40 cubits and whose height was 30 cubits). Rabban Shimon ben Gamliel says that everything follows the parameters set by the Sanctuary (or perhaps he asked rhetorically whether everything follows the parameters set by the Sanctuary).