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Curated Torah sources across every topic, from classical texts to contemporary responsa.
The Prohibition of Meat and Milk
Sources trace the biblical prohibition against boiling a kid in its mother's milk and explore how rabbinic tradition expands this rule to forbid cooking, eating, and deriving benefit from any meat mixed with dairy products. The sources establish the practical halakhic boundaries and exceptions to this prohibition.
כׇּל הַבָּשָׂר אָסוּר לְבַשֵּׁל בְּחָלָב
Identifying and Maintaining Kosher Foods
Sources establish the biblical categories of permitted and forbidden animals, fish, and birds, and explain the practical identifying signs (simanim) used to determine kosher status. The sources progress from Torah's foundational rules through rabbinic analysis and medieval codification into a comprehensive legal framework for keeping kosher.
סִימָנֵי בְּהֵמָה וְחַיָּה נֶאֶמְרוּ מִן הַתּוֹרָה
The Six-Hour Wait Between Meat and Milk
These sources trace the biblical prohibition against cooking meat in milk through rabbinic interpretation and codification, establishing the practical requirement to wait six hours between consuming meat and dairy products. The Shulchan Arukh's ruling synthesizes earlier talmudic testimony and medieval halakhic debate to establish the definitive standard for this fundamental kashrut law.
אכל בשר אפילו של חיה ועוף לא יאכל גבינה אחריו עד שישהה שש שעות
Waiting Periods Between Meat and Dairy
Jewish law requires a waiting period after eating meat before consuming dairy products. While the Rambam and Shulchan Arukh codify a six-hour wait, earlier Talmudic sources and later Ashkenazic authorities permit shorter intervals—from meal to meal or even one hour—reflecting a sustained halakhic debate on the duration and rationale of this separation.
אָמַר מָר עוּקְבָא: אֲנָא, לְהָא מִלְּתָא, חַלָּא בַּר חַמְרָא לְגַבֵּי אַבָּא
The Kashrut of Sturgeon: A Halachic Debate
This collection examines the longstanding halachic question of whether sturgeon is a permitted fish under Jewish dietary law. Sources range from biblical foundations on fish signs (fins and scales) through rabbinic definitions in the Talmud, medieval codifications by the Rambam, and early modern responsa from the Noda BiYehudah and Chatam Sofer, all debating whether the sturgeon's ganoid scutes qualify as true kaskeset (scales).
כל שיש לו סנפיר וקשקשת טהור
Halakhic Rulings on Heretics and Apostates
Jewish legal sources establish the status of minim (heretics), apikorsim (heretics/epicureans), and meshumadim (apostates) as individuals outside the community of Israel with no obligation—and in some cases a positive duty—to preserve their lives. The sources range from Tanakh narratives of zealous religious violence to Talmudic rulings and Maimonidean codification of their exclusion from communal life and the World to Come.
מוֹרִידִין וְלֹא מַעֲלִין
The Permissibility of Killing Animals
Jewish sources address whether and under what conditions animals may be killed for human use. The sources trace the biblical permission to eat meat as a post-Flood concession to human appetite, establish the principle of minimizing animal suffering (tzaar baalei chayyim), and codify ritual slaughter as the exclusive permissible method.
לא נתנה בשר אלא לתאוה
Bal Tosif and Lo Sasur: Adding and Subtracting from Torah
These twin prohibitions forbid adding new commandments to the Torah or subtracting from existing ones. The sources explore the Biblical foundation of these laws, their application through rabbinic authority, and the crucial distinction between legitimate rabbinic enactments and unauthorized innovations that violate these prohibitions.
לֹא תֹסִפוּ עַל־הַדָּבָר אֲשֶׁר אָנֹכִי מְצַוֶּה אֶתְכֶם