Daf Yomi with Rabbi Moshe Mustacchi

Menachot Daf 42

·23 min·2 clips
Rav Nachman questions why someone would make a blessing when putting on tzitzit, challenging Rav Hasda's principle.
The episode is part of the Daf Yomi program, where Rabbi Moshe Mustacchi teaches a page of the Babylonian Talmud daily. This session covers Menachot Daf 42, focusing on the laws of tzitzit, the fringes on four-cornered garments. It begins with a discussion on the exact placement of tzitzit, specifying they must be a knuckle's distance from the corner and not on the tip or lining. A story is shared about Rav Asher and Ravina, where Rav Asher notices Ravina's tzitzit has ripped and moved too close to the corner, leading to a debate on measurements. The episode then shifts to a core halachic debate between Rav Nachman and Rav Hasda regarding whether making tzitzit requires a blessing. Rav Hasda argues that if a non-Jew can perform a mitzvah, a Jew does not need a blessing, while Rav Nachman holds the obligation is on the person wearing it. This principle is applied to other mitzvot: sukkah made by a non-Jew is kosher, so no blessing is needed for making it, but tefillin written by a non-Jew are invalid, yet Jews still do not say a blessing for writing them. The discussion extends to the materials and intent required for tzitzit, such as whether threads must be spun specifically for tzitzit. It also covers the dyeing process for techelet, the blue string, emphasizing it must be done with proper intent. Methods for testing the authenticity of techelet dye are described, including using a mixture with baby urine and barley to check if the color holds. The episode references various sages like Rav Shmuel, Rabbi Yochanan ben Dehabai, and Tosafot, and touches on related topics like brit milah and the reliability of sellers for religious items. The format is educational, with Rabbi Moshe explaining Talmudic texts in a structured, lecture-style manner, aimed at daily study participants.

As heard by us

Tzitzit placement, tefillin writing, and the blue-wool test are laid out with careful, step-by-step logic.

The discussion opens with tzitzit, moving through where the strings belong, how far they should sit from the corner, and what to make of them when they end up on the lining or the tip instead.

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Why you'd press play

You get a brisk run from tzitzit placement to tefillin and blue wool testing.

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