One-Upping

The Gemara relates: When Rabbi Ḥanina and Rabbi Ḥiyya would debate matters of Torah, Rabbi Ḥanina would say to Rabbi Ḥiyya: Do you think you can debate with me? Heaven forbid! If the Torah were forgotten from the Jewish people, I could restore it with my powers of analysis and intellectual acumen. Rabbi Ḥiyya said to Rabbi Ḥanina: Do you think you can debate with me? You cannot compare yourself to me, as I am acting to ensure that the Torah will not be forgotten by the Jewish people.

Rav Dimi bar Yosef raised a dilemma before Rav Naḥman: With regard to one who says to his agent: Go out and slaughter a chicken, and he went and found the chicken slaughtered, what is the halakha? Rav Naḥman said to him: Its presumptive status is that it was slaughtered properly. And he raised another dilemma: With regard to one who says to his agent: Go out and separate teruma for me, and he went and found that teruma was separated from his produce, what is the halakha? Rav Naḥman said to him: Its presumptive status is not that teruma was separated. Rav Dimi bar Yosef challenged: Whichever way you look at it, your ruling is problematic. If there is a presumption that an agent performs his assigned agency, that should be the case even with regard to teruma; and if there is no presumption that an agent performs his assigned agency, there should be no such presumption even with regard to slaughter. Rav Naḥman said to Rav Dimi in jest: After you eat a kor of salt over it, and analyze the matter at length, you will be able to understand the difference. Actually, there is no presumption that an agent performs his assigned agency, and in the case of slaughter, even if perhaps another person heard him instruct the agent and that person went and slaughtered the chicken, the slaughter would be valid, because the majority of those associated with slaughter are experts. By contrast, in the case of teruma, if perhaps another person heard him instruct the agent and then went and separated his teruma, he becomes one who designates teruma without the knowledge of the owner of the produce; and with regard to one who designates teruma without the knowledge of the owner of the produce, his teruma is not teruma.

Rav Kahana raised an objection against Rav and Rabbi Ḥanina from a baraita: There was an incident and the Sages decreed a fast on Hanukkah in Lod, and Rabbi Eliezer went down on that day and bathed in the bathhouse and Rabbi Yehoshua went down and cut his hair to show that they did not accept the fast. Furthermore, these two Sages said to the others: Go out and fast another fast as an act of penitence for what you have already fasted, as the days of Hanukkah are days of joy, on which fasting is forbidden. Hanukkah is one of the Festivals listed in Megillat Ta’anit. Even after the destruction of the Temple Hanukkah is celebrated, demonstrating that Megillat Ta’anit has not been nullified.

Apropos the duration of a brief nap, the Gemara cites that Rav said: It is prohibited for a person to sleep during the day longer than the duration of the sleep of a horse. One who sleeps for longer is derelict in the study of Torah. And how long is the duration of the sleep of a horse? It is sixty breaths long. Abaye said: The sleep of the Master, Rabba, is like that of Rav, and that of Rav is like the sleep of Rabbi Yehuda HaNasi. And that of Rabbi Yehuda HaNasi is like that of King David, and that of King David is like that of a horse. And that of a horse is sixty breaths. The Gemara relates: Abaye would sleep during the day for a period equivalent to the time it takes to enter from Pumbedita to Bei Kuvei. Rav Yosef read the following verse as pertaining to Abaye: “How long will you sleep, sluggard? When will you arise from your sleep?” (Proverbs 6:9). Rav Yosef considered this dereliction in the study of Torah.