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Meat and Dairy in Non-Ben Yomo Vessels
These sources address the halachic status of cooking meat and dairy in vessels that are not ben yomo (less than 24 hours since last use). According to the sources, when a vessel is not ben yomo, the absorbed taste is considered pigul (spoiled) and does not transmit prohibition to new foods cooked in it, though the vessel itself may retain restrictions depending on circumstance.
אם אין הכף בן יומו הקדרה והתבשיל מותרים
Prohibitions Not Nullified in Any Amount
Jewish law recognizes certain categories of prohibited items that cannot be nullified through mixture with permitted food, even in large quantities. These sources establish the principles and specific examples of such non-nullifiable prohibitions across biblical and rabbinic law.
כׇּל אִיסּוּרִין שֶׁבַּתּוֹרָה, בְּמִינוֹ — בְּמַשּׁוּ
Tefillin on Chol HaMoed: The Halakhic Dispute
Sources examine the central halakhic question of whether tefillin are worn during the intermediate days of Passover and Sukkot. The dispute turns on whether Chol HaMoed constitutes a time requiring tefillin, with medieval and later authorities offering differing positions and practical rulings based on the concept of multiple signs and festival sanctity.
שבת ויו״ט לאו זמן תפילין הן
Summoning a Person to Beit Din
Sources address the procedures and rabbinic authority for summoning an individual to a Jewish court, including the process of repeated summonses, the role of court messengers, and the court's disciplinary powers when someone fails to appear or violates communal and religious standards.
כיצד מזמינים לדין ועל פי מי
Shared Microwave Use for Meat and Dairy
Sources address the halakhic conditions under which a single cooking vessel or appliance may be used for both meat and dairy foods. They discuss the transfer of absorbed taste, the effects of heat and steam in enclosed spaces, and the possibilities of separation, cleaning, or barriers that might permit such shared use.
בָּשָׂר בְּחָלָב אָסוּר לְבַשְּׁלוֹ וְאָסוּר לְאָכְלוֹ מִן הַתּוֹרָה
Meat and Dairy in Shared Utensils
Jewish law addresses whether meat and dairy can be prepared in the same utensil, examining how taste transfer, steam, and absorption affect permissibility. Sources discuss the role of the sixty-to-one ratio, the method of use, and practical solutions such as kashering between uses.
כדרך תשמישן כך הכשרן
Kohen Traveling Over Graves and Soda on Shabbat
Sources address the halakhic status of a kohen flying over cemeteries and graves, examining whether airborne passage above corpses transmits impurity through the structure of an ohel, and the permitted methods of preparing carbonated beverages on Shabbat without violating cooking prohibitions.
זרוק ל"ש אהל
Mezuzah Obligations in Shared Office Spaces
Sources examine the halakhic requirements for mezuzah on entrances to various types of buildings and shared spaces, establishing criteria for when communal or non-residential areas require a mezuzah based on their function and design.
בית מה בית מיוחד לדירה יצאו אלו שאין מיוחדים לדירה
Tefillin on Chol HaMoed: Halakhic Dispute
Rishonim and Acharonim present contrasting views on whether Chol HaMoed requires tefillin at morning services, with Sephardi and Ashkenazi communities maintaining different established practices regarding wearing tefillin and reciting the blessing.
וחולו של מועד יש מסתפקין בו אם הוא זמן תפילין
Wearing Tefillin on Chol HaMoed
Sources explore the halachic status of wearing tefillin during the intermediate days of Pesach and Sukkot. The sources present a foundational principle that tefillin are not worn on days that are themselves signs (Shabbat and Festivals), along with divergent customs between Sephardic and Ashkenazi communities regarding Chol HaMoed.
בחוה״מ ג״כ אסור להניח תפילין מהטעם הזה בעצמו
Mezuzah Obligations for Mobile Dwellings
These sources address the halakhic requirements for affixing a mezuzah, focusing on what constitutes a residential dwelling obligated in the mitzvah. The sources establish that a structure must be a fixed, permanent residence designated for dwelling to require mezuzot, providing the legal framework for determining whether temporary or mobile structures qualify.
מה בית מיוחד לדירה יצאו אלו שאין מיוחדים לדירה
Why Kohanim Must Maintain the Altar Fire
Sources explore the halakhic requirement that kohanim continuously kindle and maintain fire on the altar despite the descent of heavenly fire. The texts address the relationship between divine miracle and human obligation, the spiritual purpose of sustained priestly service, and the distinction between miraculous and ordinary fire.
אֵשׁ תָּמִיד תּוּקַד עַל הַמִּזְבֵּחַ