Mishneh Torah, Rest on the Tenth of Tishrei 1-3

Sugya Map

• Primary Issue: The ontological status of Yom Kippur as Shabbat vs. Yom Tov and the source of the prohibition of labor.
• Nafka Mina:
  • Whether the positive commandment of shvitat melachah derives from Shabbat or Shabbaton.
  • The status of Chol HaMoed as a Mikra Kodesh and its relation to Yom Kippur.
  • The applicability of Eruv and Hotza’ah (carrying) on Yom Kippur.
• Primary Sources: Mishneh Torah, Hilchot Shevitat Asor 1:1–3; Shabbat 24b, 114b; Yoma 74a, 81b; Chagigah 18a; Keritot 14a.

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Text Snapshot

• "It is a positive commandment to refrain from all work... as [Leviticus 23:32] states: 'It shall be a Sabbath of Sabbaths for you.'" (1:1)
• Nuance: The Rambam uses Shabbat Shabbaton to ground the positive command. Note the Seder Mishnah (ad loc.) correction: the prohibition of labor is derived from the term Shabbaton, whereas Shabbat implies the broader ontological sanctity of the day. The term Shabbaton functions as a mitzvot aseh (positive command) to rest, distinct from the lo ta'aseh (negative prohibition).

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Readings

1. The Rambam (Mishneh Torah, Hilchot Shevitat Asor 1:1)

The Rambam’s chiddush is his insistence on the structural symmetry between Shabbat and Yom Kippur. He treats Yom Kippur not merely as a day of prayer, but as a day of existential cessation of labor. By defining the labor prohibitions on Yom Kippur via the lens of Shabbat, he establishes a framework where the chiyuv (obligation) is absolute. The Rambam identifies the Shabbaton as the source of the positive command, effectively transposing the entire mechanism of Shabbat labor prohibition onto the tenth of Tishrei, with the sole exception of the penalty (karet vs. sekilah).

2. The Ohr Sameach (1:2)

The Ohr Sameach offers a brilliant chiddush regarding the Rambam’s omission of the name "Yom Kippur" when discussing the labor prohibition. He posits that the name "Day of Atonement" is fundamentally incompatible with the act of labor. If one performs a labor, one is, by definition, operating outside the "Atonement" paradigm; the day ceases to be a "Yom Kippur" for that individual and reverts to a mere day of Shabbaton prohibition. This highlights the Rambam’s technical precision: he describes the day’s halachic framework based on its objective status, not its subjective, theological function.

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Friction

The Strongest Kushya: The Lechem Mishneh (1:1) asks: If Shabbaton is the source for the prohibition of labor, and Shabbat is mentioned to define the karet penalty or the definition of the day, why does the Rambam not derive the shvut (Rabbinic prohibitions) for Yom Kippur from a separate verse? If the prohibitions are identical to Shabbat, why not simply state "Yom Kippur is like Shabbat" rather than deriving them from the text?

The Terutz: The Tzafnat Pa'neach suggests that the Rambam views the Torah as establishing a hierarchy of holiness. The Shabbaton is the cheftza (object) that defines the day's inherent rest. Therefore, all shvut prohibitions are not separate decrees but are inherent in the definition of Shabbaton. The labor prohibition is not an external restriction imposed upon the day; it is the natural consequence of the day being defined as "rest." Thus, the Rambam avoids redundancy by anchoring both the melachah and the shvut in the single, immutable definition of Shabbaton.

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Intertext

• Leviticus 23:32: "It shall be a Sabbath of Sabbaths (Shabbat Shabbaton) unto you." This is the pivot point. The Sifra (Emor) and Yoma 74a parallel this, using the doubled term to signify that the prohibition of labor and the affliction of the soul are not competing commandments but a unified experience of cessation.
• SA Orach Chayim 611: The Shulchan Aruch codifies the Rambam’s view that the fast and the labor prohibition are legally distinct but ontologically linked. The cross-ref to Hilchot Shabbat 21–23 (the source of shvut) shows the Rambam’s systematic approach: Yom Kippur is the ultimate expression of the Shabbat concept, expanded to include the total negation of physical pleasure.

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Psak/Practice

The psak follows the Rambam’s meta-heuristic: there is no effective difference between Shabbat and Yom Kippur regarding the prohibition of labor and the shvut restrictions. Practically, this means all muktzeh and shvut laws from Hilchot Shabbat apply in toto to Yom Kippur. The only deviation is the punitive category—a crucial distinction for the Beit Din (which no longer exists in a capacity to administer karet or sekilah), but a vital conceptual distinction for the individual’s teshuvah process.

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Takeaway

Yom Kippur is the "Shabbat of the Year," where the cessation of labor is not merely an external rule, but the essential condition required for the day to function as a vehicle for atonement. If the labor is performed, the sanctity of the Yom Kippur is invalidated, leaving only the Shabbaton—a day of rest that has lost its power to absolve.