The Rabbi Yitzhak ben Aḥa mentioned in a ruling of halakha is the same as the Rabbi Yitzḥak ben Pineḥas who appears in statements of aggada. And your mnemonic to remember the names is the standard phrase: Listen my brothers and friends [shimu na aḥai vere’ai]. Shimu sounds like shema’ta, the term for halakha, while aḥai is similar to the patronymic ben Aḥa.

Rabba bar bar Ḥana said that Rabbi Yoḥanan said, citing Rabbi Yehuda, son of Rabbi Elai: Eat an onion [batzal] and sit in the shade [batzel], i.e., eat inexpensive food while sitting in a comfortable place, but do not eat expensive geese and chickens, as your heart will pursue you, i.e., you will develop a taste for luxuries. Devote less to your food and your drink and spend more on your house, as one’s house is a better investment than food.

When Ulla came from Eretz Yisrael to Babylonia he said that they say the following proverb in the west, Eretz Yisrael: One who eats a fat tail [alita] must hide in the attic [aliyata] from creditors who think he is wealthy. One who eats vegetables [kakulei] can lie down in the city’s garbage [kiklei] without fear of others, as he is not in debt.

MISHNA: The tanna describes the beginning of the Passover seder. The attendants poured the wine of the first cup for the leader of the seder. Beit Shammai say: One recites the blessing over the sanctification of the day, i.e., the kiddush for the Festival: Who blesses Israel and the Festivals, and thereafter he recites the blessing over the wine: Who creates fruit of the vine. And Beit Hillel say: One recites the blessing over the wine and thereafter recites the blessing over the day.

GEMARA: The Sages taught in the Tosefta: These are the matters of dispute between Beit Shammai and Beit Hillel with regard to the halakhot of a meal. Beit Shammai say: When reciting kiddush over wine, one recites a blessing over the sanctification of the day and thereafter recites a blessing over the wine, because the day causes the wine to come before the meal. And Beit Shammai offer an additional reason. The day has already been sanctified and the wine has not yet come.

And Beit Hillel say: One recites the blessing over the wine and thereafter recites a blessing over the day, because the wine causes kiddush to be recited. Since one does not recite kiddush without wine or bread, clearly the wine is the primary feature of the ritual. Alternatively, the blessing over wine is recited frequently and the blessing over the day is not recited frequently, and there is a general principle: When a frequent practice and an infrequent practice coincide, the frequent practice takes precedence over the infrequent practice. The Tosefta concludes: And the halakha is in accordance with the statement of Beit Hillel.

The Gemara asks: What is alternatively? Why did Beit Hillel cite an additional reason? The Gemara explains: And if you say that there Beit Shammai cite two reasons, and here Beit Hillel offer only one; therefore, Beit Hillel said they are two reasons here too: When a frequent practice and an infrequent practice coincide, the frequent practice takes precedence over the infrequent practice.

It was taught in the Tosefta: And the halakha is in accordance with the statement of Beit Hillel. The Gemara comments: It is obvious that this is so, as a Divine Voice emerged and proclaimed that the halakha is always in accordance with the opinion of Beit Hillel. Why was it necessary for the Tosefta to state that in this particular case the halakha is in accordance with their opinion? The Gemara answers: If you wish, say that this Tosefta was taught before the Divine Voice emerged and proclaimed that principle.

And if you wish, say instead that this statement was indeed issued after the Divine Voice emerged, and the Tosefta is in accordance with the opinion of Rabbi Yehoshua, who said that one disregards a Divine Voice when deciding halakha. Just as Rabbi Yehoshua disregarded the Divine Voice in his dispute with Rabbi Eliezer, so too, one disregards the Divine Voice that proclaimed that the halakha is in accordance with the opinion of Beit Hillel. Therefore, it was necessary to state that the halakha is in fact in accordance with the opinion of Beit Hillel here.

MISHNA: The attendants brought vegetables before the leader of the seder prior to the meal, if there were no other vegetables on the table. He dips the ḥazeret into water or vinegar, to taste some food before he reaches the dessert of the bread, i.e., the bitter herbs, which were eaten after the matza. They brought before him matza and ḥazeret and ḥaroset, and at least two cooked dishes in honor of the Festival. The tanna comments that this was the practice, although eating ḥaroset is not a mitzva but merely a custom. Rabbi Eliezer ben Tzadok says: Actually, it is a mitzva to eat ḥaroset. And in the period when the Temple stood and they offered the Paschal lamb, they brought before him the body of the Paschal lamb.