Mishneh Torah, Forbidden Intercourse 3-5

Sugya Map: The Halachic Subjectivity of Adultery

• Core Issue: Does "adultery" (n'ifah) function as an objective act or a status-dependent event?
• Nafka Mina: Liability for execution/korban vs. malkot (stripes) when the underlying marriage is legally deficient or the woman lacks capacity.
• Primary Sources: Mishneh Torah, Hilchot Ishut 4; Ketubot 9a, 44a, 45a; Leviticus 19:20, 21:9.

Text Snapshot

• MT, Forbidden Intercourse 3:1: "When a person has relations with the wife of a minor, he is not liable... for there is no concept of marriage with regard to a male below the age of majority."
• Nuance: The Rambam emphasizes the legal status of the marriage (kiddushin) rather than the physical act. If the initial bond lacks scriptural validity, the act of "adultery" is downgraded to a social violation (malkot for rebellious conduct).

Readings

• Rambam: Asserts that adultery liability requires a legally binding marriage. Lack of capacity (minor, deaf-mute) renders the union rabbinic or null, precluding karet or death.
• Ra’avad: Argues that the seduction of a minor is inherently "rape" (ona'ah), meaning the woman is blameless and the husband’s status remains intact. He challenges the Rambam’s reliance on Ketubot 9a, favoring the view that capacity defines the injury.

Friction

• Kushya: If the marriage of a minor is legally "nothing" (ayn kiddushin), why does the Rambam allow malkot for rebellious conduct? If it is truly null, it should be no different than relations with an unmarried woman.
• Terutz: Rambam maintains a "legal shadow" concept: While the act lacks the issur of adultery, it violates the rabbinic safeguard of the marriage bond. The punishment is not for adultery, but for undermining the stability of communal social structures.

Psak/Practice

• Meta-Psak: The Rambam applies a "formalist" heuristic. Adultery is not a crime of passion or physical contact; it is a crime against contractual integrity. If the contract is void (minor, deaf-mute), the crime against the state/husband is void.
• Practice: This informs modern civil-halachic disputes regarding the validity of marriages performed under duress or without full capacity. If the kiddushin are not d'oraita, the stringent laws of sotah or get are inapplicable.

Takeaway

Adultery in Halacha is a breach of a valid contract, not merely a physical transgression. No contract = no adultery.