Mishneh Torah, Blessings 5

Sugya Map: The Status of Grace (Birkhat HaMazon)

• Issue: Do women and slaves have a D'oraita obligation to recite Birkhat HaMazon?
• Nafka Mina:
  • Whether they can fulfill the obligation for men (who are certainly obligated D'oraita).
  • The status of Zimmun (group quorum) for these cohorts.
• Primary Sources: Berachot 20b; Mishneh Torah, Blessings 5:1–10.

Text Snapshot

• MT, Blessings 5:1: "There is a doubt whether their obligation stems from the Torah... Therefore, they should not fulfill the obligation of grace on behalf of others."
• Leshon Nuance: Rambam uses "ספק" (doubt) to trigger a chumra (stringency)—if you are not sure you are obligated, you cannot act as an agent (shaliach) for someone who is definitively obligated (Berachot 48a).

Readings

• Rambam (Hilchot Berachot 5:1): The chiddush is the classification of the obligation as a "doubt." He treats the status of women regarding the inheritance of Eretz Yisrael (the textual trigger for Grace in Dt. 8:10) as an unresolved halachic ambiguity.
• Rosh (Berachot 3:13): Argues that the obligation is D'oraita but restricted by a din arevut (mutual guarantee) logic. If they aren't obligated in the mitzvot of the Land, they aren't "guarantors" for those who are.

Friction: The "Arevut" Paradox

Kushya: If women aren't obligated D'oraita, how can they make a Zimmun among themselves? Terutz: Rambam distinguishes between the obligation of the individual and the eligibility to form a quorum. While they lack the D'oraita standing to join a men’s Zimmun (due to the risk of shomeia k'oneh—the listener fulfilling the obligation through the speaker), they constitute a valid "company" (chaburah) for their own Rabbinic-level Zimmun. The limitation is not on their ability to praise God, but on the potential to violate the principle of arevut by discharging a D'oraita duty for someone else.

Intertext

• SA, Orach Chayim 199:7: Codifies that women are not obligated in Zimmun, but may recite it among themselves.
• Yerushalmi, Berachot 7:3: The foundational debate on whether Zimmun is a D'oraita or D'rabbanan framework.

Psak/Practice

The meta-heuristic here is "Sfeika D'din" (Halachic Doubt): Because the D'oraita status is unverified, the chumra is exclusionary. One cannot force a D'oraita discharge on another when the agent's own status is potentially inferior (Berachot 20b). In current practice, women do not join a Zimmun of men, maintaining the Chazal boundary to prevent the intersection of differing obligation levels.

Takeaway

Halacha treats "doubt" not as a license to ignore, but as a boundary condition: if your obligation is uncertain, you are barred from acting as the shaliach (agent) for those with a certain obligation.