Chullin 65

Sugya Map

• Core Issue: The hermeneutical mechanics of kashrut classification for non-domesticated species (specifically birds and locusts) and the tension between linguistic signifiers and biological observation.
• Primary Sources: Leviticus 11:21-22, Chullin 65a, Tosafot ad loc..
• Nafqa Mina:
  • Whether the "name" of a locust species acts as a legal sine qua non or merely an illustrative descriptor.
  • The legitimacy of binyan av (building a paradigm) from multiple verses that appear to deviate from standard kelal u’ferat patterns.
  • Reconciling the "long-headed" locust (sho’ashifa)—is it a prohibited morphological variant or a permissible sub-species?

Text Snapshot

The Gemara Chullin 65a navigates the definition of kosher grasshoppers through the school of Rabbi Yishmael. The text employs the hermeneutic of kelal u’ferat (generalization and detail). A critical nuance appears in the analysis of the verse: "These of them you may eat: The arbeh after its kinds, and the solam after its kinds..." Leviticus 11:22. The Gemara struggles with the apparent redundancy of "after its kinds" (le-mino).

• Dikduk Nuance: The text differentiates between arbeh (the govai), solam (the rashon), hargol (the nippul), and hagav (the gadyan). The repetition of le-mino is not seen as syntactic clutter but as a formal ribui (inclusionary force) to expand the kosher category to species that lack specific traits (like smooth foreheads or tails) found in the primary examples.

Readings

Tosafot on Chullin 65a ("Ellu Kelalei Kelalot")

Tosafot (s.v. Ellu) provides a sophisticated meta-commentary on the methodology of the school of Rabbi Yishmael. They clarify that the tanna does not argue that all these species are judged together in a single kelal-u’ferat-u’kelal chain. Instead, they argue that the presence of multiple "after its kinds" phrases, when placed outside their conventional proximity to the primary nouns, creates a set of "generalized generalizations." The chiddush here is the rejection of a singular, monolithic application of the kelal-u’ferat rule. Tosafot posits that the Torah intentionally disrupts the syntax of the list—placing the solam between the arbeh and hargol—to force the student to derive a binyan av (paradigm) from the common denominator of all three, rather than assuming a linear progression.

Rabbeinu Gershom on Chullin 65a

Rabbeinu Gershom focuses on the taxonomy of the peratei peratot (the specific details). He maps the obscure Aramaic terms (gadyan, nippul) directly to the list, treating the hermeneutic as a functional bridge to identify the "vineyard bird" (tziparta de-karmei) and others. His chiddush is pedagogical: he frames the complexity not as an abstract logic puzzle but as a practical identification guide. By delineating four distinct "rules" of classification—four legs, four wings, jumping legs, and wing-coverage—he establishes a baseline that allows for the inclusion of outliers (like the long-headed locust) provided they satisfy the core criteria.

Friction

The Kushya: The "Long-Headed" Paradox

The strongest kushya arises from the status of the "long-headed" locust. If the arbeh, solam, and hargol all share the common denominator of not having a long head, why should we assume the long-headed variant is permitted? Logically, the binyan av should exclude it as a "deviant" form.

The Terutz

Rav Aḥai’s solution—that the solam is redundant—is the masterstroke. If the solam were not needed for its own identification, it must serve to define the bounds of the paradigm. The Gemara utilizes the "redundant" verse as a gezerah shavah-adjacent logic: if the Torah includes a species that possesses a specific trait (the solam's smooth forehead) alongside others that do not, it signals that "long-headedness" is not a disqualifying feature. The terutz shifts the burden of proof from the presence of a trait to the absence of a disqualifying contradiction.

Intertext

• Leviticus 11:21: The verse regarding "jointed legs" (kera’ayim) serves as the foundational kelal for the entire locust discussion. The debate in Chullin 65a is effectively an expansion of the "until they grow" clause.
• Shabbat 90b: The tosafot cites the debate regarding sho’ashifa (the long-headed locust). The Gemara there discusses whether eating a live insect violates bal teshaktzu (abominations). The resolution in Chullin—that the long-headed type is kosher—is essential to the Shabbat discussion, where the debate shifts from the nature of the species to the method of consumption.

Psak/Practice

In Halacha, the definition of the locust remains largely theoretical for most Ashkenazic communities, which follow a restrictive tradition (the "tradition of eating" rule). However, the meta-psak heuristic here is critical: Redundancy in Torah serves as an expansionary legal tool. When a text provides multiple instances of a category, the "common denominator" method (binyan av) is the preferred judicial mode over a narrow, literalist reading. For the posek, this means that in the absence of a clear prohibited sign, the "common denominator" of permitted traits is sufficient to grant hechsher.

Takeaway

Classification is not merely about finding a match; it is about identifying the "common denominator" that remains when the noise of the specific examples is stripped away. The Torah’s redundancy is the primary engine of halachic inclusion.