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Kiddush Without Wine: Medical Exemptions
Classical and later rabbinic sources address the halakhic status of kiddush when wine cannot be consumed due to health or other constraints. The sources discuss alternative beverages, the role of bread, and practical solutions when wine is unavailable or inadvisable.
אם אין לו יין ומקדש על הפת
Kiddush in the Place of the Meal
Sources discuss the halakhic requirement that kiddush must be recited in the location where one will eat, and address whether kiddush made in the synagogue fulfills the obligation or whether one must repeat it at home. The sources establish that kiddush is valid only when recited in the place where a meal actually takes place.
אֵין קִדּוּשׁ אֶלָּא בִּמְקוֹם סְעֻדָּה
Kiddush in the Place of the Meal
Sources establish the requirement that Kiddush be recited in the same location where one will eat the Shabbat meal. The sources address the halakhic basis for this requirement, practical applications when moving between different homes or rooms, and the connection between Kiddush and the meal itself.
אֵין קִידּוּשׁ אֶלָּא בִּמְקוֹם סְעוּדָה
The Slit in Lechem Mishnah
Sources discuss the practice of making a slit or break in one of the two Shabbat loaves. The Talmud establishes the requirement for two loaves on Shabbat, while later authorities document varying customs regarding which loaf is broken and how the break is made.
מַנִּיחַ פְּרוּסָה בְּתוֹךְ הַשְּׁלֵמָה וּבוֹצֵעַ
Serving Fully Cooked Food from a Slow Cooker on Shabbat
These sources address the halakhic permissibility of removing and handling fully cooked food from a heat source on Shabbat, including the conditions under which cooked food at yad soldet bo (a temperature the hand recoils from) may be served and whether a vessel may be returned to the heat source after removal.
כׇּל שֶׁבָּא בְּחַמִּין מִלִּפְנֵי הַשַּׁבָּת — שׁוֹרִין אוֹתוֹ בְּחַמִּין בְּשַׁבָּת
Serving From and Covering a Slow Cooker on Shabbat
These sources address the halakhic principles governing food left on heat sources before Shabbat, including when one may remove and return fully cooked dishes, handle them during Shabbat, and the conditions under which covers or lids may be replaced. The sources discuss the distinction between fully cooked food and partially cooked food, and the role of insulation and heat intensity in determining permitted actions.
כירה שהיא גרופה וקטומה ונטל הקדירה מעליה אפילו בשבת מותר להחזירה
Bishul on Shabbat: Cooking, Reheating, and Retention
Sources explore the melacha of bishul (cooking) on Shabbat, including the foundational prohibition of fire-kindling for food preparation, the laws of shehiyah (leaving food on heat before Shabbat), and chazarah (returning food to heat on Shabbat). The sources trace halakhic development from Talmudic principles through codified rulings on practical implementation and permitted conditions.
מלאכת אוכל נפש
The Melacha of Borer: Laws and Table Applications
These sources establish the halakhic framework of borer (selecting or sorting) on Shabbat, defining which separations of mixed foods and utensils are permitted for immediate use and which constitute a prohibited melacha. The sources address the distinction between selecting edible from waste versus waste from edible, the role of intention and timing, and restrictions on using tools like sieves.
בּוֹרֵר וְאוֹכֵל ל[אַלְתַּר]
Muktzeh: Categories and Household Object Handling
Sources outline the primary categories of muktzeh—objects forbidden to be moved on Shabbat—and establish which household items and utensils may be handled, moved for their intended use, or moved indirectly to prevent loss or damage. The sources distinguish between permitted and forbidden objects based on their function, purpose, and ordinary use.
אָסְרוּ חֲכָמִים לְטַלְטֵל מִקְצָת דְּבָרִים בְּשַׁבָּת
Motion-Sensing Lights and Shabbat Restrictions
Sources address whether triggering a motion sensor that activates or deactivates lighting constitutes a violation of the melacha of kindling (or extinguishing), and how principles of intentionality, indirect causation, and Shabbat restrictions apply to such actions.
כָּל הָעוֹשֶׂה מְלָאכָה בְּשַׁבָּת חַיָּב עָלֶיהָ
The Prohibition of Cooking and Heat on Shabbat
These sources establish the foundational halakhic framework for Shabbat labor prohibitions, particularly the thirty-nine categories of creative work prohibited on the seventh day. They explain how cooking and heat-related activities are classified as forbidden melachot, providing the conceptual basis for later rabbinic discussions about electrical appliances and modern devices.
כשם שאסור לבשל באור כך אסור לבשל בתולדות האור
Amirah Le-Nokhri: Instructing Non-Jews on Shabbat
These sources address the rabbinic prohibition against instructing a non-Jew to perform work on Shabbat, including when such instruction is forbidden or permitted, the distinction between direct commands and indirect hints, and exceptions for cases of need or religious obligation.
אסור לומר לנכרי לעשות לנו מלאכה בשבת