Eduyos 7:6 - 7:7

ולד שלמים לא יקרב שלמים – but one puts it into the prison and it dies. It is because a decree, for if we you were to say that the offspring of a peace-offering has a remedy, one can wait for the mother until she gives birth and the flock would grow from the offspring and it would provide wool and labor.

ואכלנו ולדה שלמים בחג – on the holiday of Shavuot, for if he would wait and look forward to the holiday of Sukkot, it is found that he would violate a positive commandment, as it states (Deuteronomy 12:5,6): “There you are to go, and there you are to bring [your burnt offerings and other sacrifices, your tithes and contributions, your votive and freewill offerings, and the firstlings of your herds and flocks],” that implies on the first Festival that you would go there, bring all your vows that are upon you. However, the negative commandment of “[When you make a vow to the LORD your God] do not put off fulfilling it,” he does not transgress until three festivals have passed by.

ארוכות של נחתומים (this section of the Mishnah is also taught in Tractate Kelim, Chapter 15, Mishnah 2) – flat wooden utensils that bakers arrange there loaves of bread at the time when they make bread. Long-ranging boards like to work the dough.

שהן טמאות – According to the Rabbis, for assuming that from the Torah, flat wooden utensils do not receive defilement,, the Rabbis decreed upon them, as is brought in Tractate Kelim, Chapter 2 (Mishnah 1).

שר' אליעזר מטהר (see Tractate Kelim, Chapter 10, Mishnah 5) – that he held that they are not considered utensils at all, and even if they are not like flat wooden utensils. But the Halakha is not according to Rabbi Eliezer.

שחתכו חוליות – they cut up the burned clay of the oven by its width into tiles and placed one tile on top of another, and placed sand in-between each tile, and plastered it with plaster/mud and made of it a paste of plaster surrounding its matting to guard its heat in the manner that people do for ovens.

שרבי אליעזר מטהר – for since there is sand between the cracks, it is similar to as if it’s broken. And the Sages defile it for the plaster makes it all as one, and attaches the slits, even though there is sand between each tile. But the Halakha is not according to Rabbi Eliezer (Note: This dispute is the source text for the famous debate of the Oven of Akhnai found in Tractate Bava Metzia 59a).

שמעברין את השנה בכל אדר – until the twenty-ninth of Adar, there is time for the Jewish court to state that it is a leap year, and that the next month is the Second Adar, but on the thirtieth day of Adar, one cannot intercalate the year, since it is appropriate to establish [the month of] Nisan, in the chapter of Tractate Pesahim 56a – “In the place where the practice existed” (chapter 4).

על תנאי – if the President [of the Sanhedrin} wishes that it would be intercalated and if not, it would not be intercalated.