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Halachaהלכה

Chalav Yisrael: The Requirement for Milk Supervision

Sources spanning from the Mishnah through later rabbinic authorities discuss the prohibition against drinking milk from non-Jews without Jewish supervision, the underlying concern for mixture with non-kosher animal milk, and the standards for acceptable supervision. The sources establish both the foundational principle and its application across different circumstances.

חלב שחלבו גוי ואין ישראל רואהו אסור

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Halachaהלכה

Water Changes and Mikveh Validity

These sources discuss the halakhic standards for determining when a mikveh remains valid despite changes in the water's appearance, taste, or smell. The sources establish that visual alterations—but not changes in taste or smell alone—can affect a mikveh's fitness for immersion.

אֵין הַמִּקְוֶה נִפְסָל לֹא בְּשִׁנּוּי הַטַּעַם וְלֹא בְּשִׁנּוּי הָרֵיחַ אֶלָּא בְּשִׁנּוּי מַרְאֶה בִּלְבַד

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Halachaהלכה

Seclusion Between Men and Women

Jewish sources address the halakhic prohibition against a man and woman being alone together (yichud), exploring its scope, applications, and the implications of violating this restriction. The sources discuss whether witnesses must be present, how location and context affect the prohibition, and the consequences for personal status and lineage.

צריך אדם להתרחק מהנשים מאד מאד

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Halachaהלכה

The Blessing on Breaded Chicken

These sources address the halakhic principles for determining the correct blessing on composite foods, particularly when one ingredient serves as a coating or secondary element. They establish the rule that the primary food determines the blessing, with secondary components following its status.

העיקר פוטר הטפל

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Halachaהלכה

Wine Mixed in Whiskey and Bitul

Sources address the halachic principles governing whether wine absorbed into another liquid medium becomes nullified, focusing on the rules of ta'am (imparted flavor) and bitul b'shishim as applied to mixtures of different substance types.

יַיִן בְּמַיִם וּמַיִם בְּיַיִן בְּנוֹתֵן טַעַם

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Halachaהלכה

Havdalah and Telephone Transmission

Sources examine whether hearing Havdalah recited over the telephone fulfills one's obligation, drawing on the principle of shome'a k'oneh (hearing as equivalent to reciting) and the halakhic requirements for genuine 'hearing' in ritual contexts.

שומע כעונה

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Halachaהלכה

Using an Elevator Operated by a Gentile on Shabbat

Sources address the halakhic status of benefiting from labor performed by a gentile on Shabbat, including when such benefit is permitted and when it is forbidden. These texts establish the foundational principles governing Jewish use of gentile-operated mechanisms and services during Shabbat.

אָסוּר לוֹמַר לְנָכְרִי לַעֲשׂוֹת לָנוּ מְלָאכָה בְּשַׁבָּת

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Halachaהלכה

Weekday Clothing on Shabbat Chazon

Tisha B'Av

The halakhic treatment of wearing weekday garments on Shabbat Chazon (the Shabbat before Tisha B'Av) addresses the tension between Shabbat requirements for special dress and Nine Days mourning practices. Sources discuss which garments may be exchanged and under what circumstances, as well as varying customs among different communities.

בגדי שבת אין משנים כי אם הכתונת משום עונג שבת

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Halachaהלכה

Stains and Impurity Without Sensation

These sources address the halakhic status of a woman who discovers a blood stain on her clothing or body but felt no flow and finds nothing upon internal examination. The sources establish that even without sensation or positive findings, such a stain can render her impure according to rabbinic decree, and explore the reasoning and practical applications of this rule.

אַף עַל פִּי שֶׁלֹּא הִרְגִּישָׁה אַף עַל פִּי שֶׁבָּדְקָה עַצְמָהּ וְלֹא מָצְאָה דָּם הֲרֵי זוֹ טְמֵאָה

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Halachaהלכה

Elective Cosmetic Surgery in Halacha

Sources examining whether deliberate bodily modification for aesthetic purposes is permitted under Jewish law. The sources address foundational prohibitions against self-injury, exceptions for healing, and the halakhic distinction between medical and non-medical bodily interventions.

כׇּל דָּבָר שֶׁיֵּשׁ בּוֹ מִשּׁוּם רְפוּאָה אֵין בּוֹ מִשּׁוּם דַּרְכֵי הָאֱמוֹרִי

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Halachaהלכה

Chalav Akum: The Rabbinic Decree and Supervision

Sources examine the rabbinic prohibition against milk from a non-Jew without Jewish supervision, tracing the decree's rationale—concern for admixture with non-kosher milk—through Chazal, the Rishonim, and Acharonim rulings on the parameters of permissible supervision and application.

שמא עירב בו חלב בהמה טמאה

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Halachaהלכה

Shaving During the Three Weeks for Shalom Bayis

Tisha B'Av

Sources address the halakhic restrictions on shaving and haircuts during the Three Weeks of mourning preceding Tisha B'Av, and discuss how communal custom and cases of need—such as marital harmony—may inform leniencies within these observances.

כל שמעכב את האכילה מותר

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