Combien de temps ?

Concernant ce que les sages de France ont décrété, à savoir que le fromage peut être mangé après la viande dans le même repas, si l'on se lave les mains et si l'on se nettoie la bouche - est-ce correct, ou est-ce que la halakha est comme le sage qui interdit de telles choses?

Ils ont répondu [dans mon rêve] : "Tu n'es pas sage de poser une telle question" (Kohelet 7:10), "car les voies de l'Éternel sont droites, les justes suivront leurs chemins, et les méchants trébucheront" (Osée 14:10), "Ne l'ai-je pas écrit trois fois ?" (Proverbes 22:20), "Inclinez-vous vers la multitude" (Exode 23:2) - et la majorité d'aujourd'hui interdit de telles choses. Dans la Yéchiva céleste, il n'y a pas de désaccord à ce sujet, et nous considérons tous que c'est interdit.

§ Rav Asi posed a dilemma to Rabbi Yoḥanan: How much time should one wait between eating meat and eating cheese? Rabbi Yoḥanan said to him: No time at all. The Gemara asks: Is that so? But doesn’t Rav Ḥisda say: If one ate meat, it is prohibited for him to eat cheese immediately, but if he ate cheese it is permitted for him to eat meat without delay? Rather, Rav Asi actually asked Rabbi Yoḥanan the following question: How much time should one wait between eating cheese and eating meat? In response to this question, Rabbi Yoḥanan said to him: No time at all. After tangentially citing a statement of Rav Ḥisda, the Gemara discusses the matter itself. Rav Ḥisda says: If one ate meat, it is prohibited for him to eat cheese immediately, as the meat contains fatty substances that stick to one’s mouth and preserve the flavor of meat. But if he ate cheese it is permitted for him to eat meat without delay. Rav Aḥa bar Yosef said to Rav Ḥisda: In the case of meat that is between the teeth, what is the halakha? Are these remnants considered meat to the extent that one may not eat cheese as long as they are in his mouth? In response, Rav Ḥisda read about him the following verse: “While the meat was yet between their teeth” (Numbers 11:33). This verse indicates that even when the meat is between one’s teeth it is still considered meat, and therefore one may not partake of cheese until that meat has been removed. Mar Ukva said: I am, with regard to this matter, like vinegar, son of wine, with respect to Father, i.e., my practice is inferior to that of my father. As Father, if he were to eat meat at this time, would not eat cheese until tomorrow at this time. But as for me, only at this meal, during which I ate meat, do I not eat cheese; at a different meal on the same day I will eat cheese.

It is forbidden to eat cheese - Because meat exudes fat that stays in the mouth and the taste stays in the mouth.

"At the next meal I'll eat": Not just at the meal that is customary - one in the morning and one in the evening - rather even immediately, if you clear the table and make the concluding blessing, it's permissible, since the Rabbi's didn't differentiate.

When a person ate meat first - whether the meat of an animal or the meat of a fowl - he should not partake of milk afterwards unless he waits the time for another meal, approximately six hours. This stringency is required because meat that becomes stuck between teeth and is not removed by cleaning.

§ The Gemara continues discussing the consumption of poultry cooked in milk. The Sage Agra, the father-in-law of Rabbi Abba, taught: The meat of birds and cheese may be eaten freely [apikoren], i.e., there is no need to be strict in this matter. The Gemara notes: He, Agra, teaches it and he says it, i.e., explains his statement: The meat of birds and cheese may be eaten without washing one’s hands and without wiping the mouth between the consumption of each. The Gemara relates: Rav Yitzḥak, son of Rav Mesharshiyya, happened to come to the house of Rav Ashi. They brought him cheese, and he ate it. Next they brought him meat, and he ate it without first washing his hands. The members of Rav Ashi’s household said to him: But didn’t Agra, the father-in-law of Rabbi Abba, teach only that the meat of birds and cheese may be eaten freely? One can infer that with regard to the meat of birds and cheese, yes, one may eat them without washing one’s hands in between, but with regard to the meat of domesticated animals and cheese, no, one may not. Rav Yitzḥak said to them: This statement of Agra applies only if one eats them at night, as one cannot see whether some of the food of the previous dish still remains on his hands, and he must therefore wash them. But if one eats by day, I can see that no food remains on his hands, and consequently there is no need to wash them. It is taught in a baraita: Beit Shammai say: Between the consumption of meat and milk one must wipe out his mouth, and Beit Hillel say that he must rinse his mouth. The Gemara asks: What is the meaning of the word: Wipe [mekane’aḥ], and what is the meaning of the word: Rinse [mediaḥ]?

It is prohibited to cook any meat of domesticated and undomesticated animals and birds in milk, except for the meat of fish and grasshoppers, whose halakhic status is not that of meat. And likewise, the Sages issued a decree that it is prohibited to place any meat together with milk products, e.g., cheese, on one table. The reason for this prohibition is that one might come to eat them after they absorb substances from each other. This prohibition applies to all types of meat, except for the meat of fish and grasshoppers. And one who takes a vow that meat is prohibited to him is permitted to eat the meat of fish and grasshoppers. The meat of birds may be placed with cheese on one table but may not be eaten together with it; this is the statement of Beit Shammai. And Beit Hillel say: It may neither be placed on one table nor be eaten with cheese. Rabbi Yosei said: This is one of the disputes involving leniencies of Beit Shammai and stringencies of Beit Hillel. The mishna elaborates: With regard to which table are these halakhot stated? It is with regard to a table upon which one eats. But on a table upon which one prepares the cooked food, one may place this meat alongside that cheese or vice versa, and need not be concerned that perhaps they will be mixed and one will come to eat them together.