Questions tagged [halacha-lemoshe-misinai]

Questions regarding *halachot lemoshe misinai* - biblical laws that are not derived from the Pentateuch.

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What to do when there are multiple pursuers

We know that if there is one (a rodef) who is actively attacking another person in the hopes of killing him, one is allowed to restrain, maim, or even kill the rodef. However, what happens if there ...
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Does the law of pi tikrah apply to temporary structures such as a sukkah?

In Eruvin 94b the Sages are debating about the Sinaitic law of partitions, more specifically “pi tikrah” ( פי תקרה יורד וסותם .) Here the topic is about permanent homes. Presently, I am in the process ...
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Halacha LeMoshe MiSinais which are taught together were originally said together

I seem to remember seeing somewhere, maybe Tosafos somewhere, saying that when the gemarra groups certain halacha lemoshe misinai's together, like Sukkah 5b with שיעורין חציצין ומחיצין, it's telling ...
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Why Halachot LiMosheh MiSinai can not be derived from the Torah?

The existence of the term "Halachot LiMosheh MiSinai" hints on the fact that some Halochos are not derived / can not be derived from Torah in any way but Moses received them orally. Because if it was, ...
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Is there a comprehensive list of what all the Halacha L'Moshe M'Sinai are? [duplicate]

Tefillin have to be black Lavud (two things are within less than three tefachim of each other, they are considered to be touching, and therefore contiguous) all the types of shiurim (measurements) ...
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Are there any applications of dofen akumah outside of sukkah?

The Gemara (in several places, here's one) lists a group of three halachos related to walls that were taught to Moshe at Sinai: gud [asik/achis] - extending a partial wall up or down under certain ...
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Sitting four tefachim under a dofen akuma

The Shulchan Arukh (OC 632:1) rules that invalid sekhakh at the edge of a sukkah does not invalidate the sukkah if it is less than four amoth, based on the principle of dofen akuma. He also rules ...
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List of Halachot LiMosheh MiSinai

Is there a comprehensive list of things in the Talmud that are "halachot limosheh misinai"- laws that were passed down from Moshe through the generations? An example of such is tefilin needing to be ...
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