Arukh HaShulchan, Orach Chaim 248:10-249:1

Sugya Map

• Issue: The obligation to don tefillin during Chol HaMoed.
• Nafka Mina: Whether tefillin are worn, and if so, whether a bracha is recited. This hinges on the fundamental halachic nature of Chol HaMoed – is it a full Yom Tov or a distinct intermediate status?
• Primary Sources: Arukh HaShulchan, Orach Chaim 248:10-249:1; Shulchan Aruch, Orach Chaim 248:10; Rema, Orach Chaim 248:10; Vilna Gaon, Bi'ur HaGra, Orach Chaim 248:10.

Text Snapshot

The Arukh HaShulchan transitions from the specific halacha of tefillin on Chol HaMoed to its underlying principle:

"הנה מבואר בסימן זה דין תפילין בחול המועד... ומכאן תבין דכיון דחול המועד לאו יום טוב גמור הוא אלא מועד הוא ומיעוט מלאכה" Arukh HaShulchan, Orach Chaim 249:1

The nuanced phrase "לאו יום טוב גמור הוא אלא מועד הוא" is critical. It's not a "complete" Yom Tov, but it is a mo'ed. This distinction frames the entire debate. The leshon "ומכאן תבין" (from here you will understand) explicitly links the tefillin question to the meta-definition of Chol HaMoed.

Readings

Rema (Orach Chaim 248:10)

The Rema rules that tefillin are not worn on Chol HaMoed, aligning with the widespread minhag Ashkenaz. He acknowledges, however, a practice by some to wear them without a bracha, interpreting Chol HaMoed as having sufficient kedusha (holy distinction) to qualify as mo'ed and thus exempt one from tefillin (which are a "sign" of kedusha themselves).

Vilna Gaon (Bi'ur HaGra, Orach Chaim 248:10)

The Gra vigorously contends that tefillin should be worn with a bracha. His chiddush is that Chol HaMoed is not a Yom Tov in the sense that would exempt one from tefillin. He views the prohibition of melacha on Chol HaMoed as a distinct gezeiras hakasuv (Torah decree) that does not elevate it to the full status of Yom Tov regarding tefillin, whose function as an "אות" (sign) is superseded only by a Yom Tov proper.

Friction

The core kushya is reconciling the halachic kedusha of Chol HaMoed – which prohibits melacha – with its perceived lesser status regarding tefillin. If it's a mo'ed, why isn't it a full Yom Tov to exempt from tefillin? Conversely, if it's not a full Yom Tov, why prohibit melacha?

The Arukh HaShulchan's framing provides the most elegant terutz: Chol HaMoed occupies a unique, intermediate halachic category: "לאו יום טוב גמור הוא אלא מועד הוא ומיעוט מלאכה" (249:1). It is a mo'ed with specific melacha restrictions, but its kedusha is not absolute enough to categorically equate it with Yom Tov for all halachot. This allows for varying stringencies and minhagim based on different interpretations of this liminal status.

Intertext

The Gemara in Mo'ed Katan repeatedly grapples with the parameters of melacha on Chol HaMoed, distinguishing it from both Chag and Chag HaPesach (e.g., Mo'ed Katan 14b, "דברי הכל אסור," regarding melacha that can be performed beforehand). This ongoing discussion underscores Chol HaMoed's unique, nuanced halachic standing.

Psak/Practice

The Arukh HaShulchan ultimately sides with the Rema, reflecting the widespread Ashkenazi minhag not to wear tefillin on Chol HaMoed. However, he respects the underlying logic of the Vilna Gaon by acknowledging the minhag of wearing without a bracha, effectively treating it as a safek or a chumra to fulfill both views. Most Ashkenazi communities do not wear tefillin, while some Sefardi communities wear them without a bracha (Shulchan Aruch, OC 31:3).

Takeaway

The debate surrounding tefillin on Chol HaMoed is a microcosm of a larger halachic meta-question: the precise definition and graduated kedusha of Chol HaMoed itself, which isn't a simple binary of Chag or Chol.