Arukh HaShulchan, Orach Chaim 309:4-12

Sugya Map

• Issue: The scope of Toldot Gazaz (shearing) regarding hair and nails on Shabbat.
• Nafka Mina: Whether the prohibition is rooted in the melacha of shearing wool or a distinct gezeirah of eino melacha.
• Sources: Shabbat 94b, Shulchan Aruch, Orach Chaim 340:1, Arukh HaShulchan, Orach Chaim 309:4-12.

Text Snapshot

• Arukh HaShulchan 309:10: "וזהו שערות... וכן הציפורנים... דהוי כגוזז."
• Nuance: Note the use of "דהוי כגוזז" (it is as shearing). The Arukh HaShulchan moves past the technicality of "dead" tissue to emphasize the teleological similarity to the Av Melacha.

Readings

• Rambam (Hilchot Shabbat 9:11): Categorizes cutting hair/nails under Gozez. The chiddush is that the prohibition is independent of the biological status of the hair; it is a ma'aseh of trimming.
• Pri Megadim (Mishnah Berurah 340:2): Focuses on the k'dei (extent) of the cut. He argues that if one removes it entirely, it is a psik reisha on the Av.

Friction

• Kushya: If hair is dead, how is it Gazaz? Gazaz requires "growth" (tzemichah).
• Terutz: The Arukh HaShulchan (309:11) posits that the Rabbis modeled the melacha on the standard of "neatening" one's appearance. The issur isn't just the biological removal, but the tikkun (repair/grooming) of the body.

Intertext

• Leviticus 21:5: Contextualizes the prohibition of shaving the corners of the head/beard, which mirrors the structural concerns of Shabbat grooming prohibitions.
• Shulchan Aruch, Orach Chaim 340:1: Explicitly codifies the prohibition of cutting nails with a tool.

Psak/Practice

The Arukh HaShulchan emphasizes that while kiddum (trimming) with a tool is strictly forbidden, removing nails by hand is a machloket (dispute) among Rishonim. In practice, the Mishnah Berurah (340:4) holds that even by hand, it is forbidden mi-derabanan.

Takeaway

The melacha of Gozez is not merely about removing biological matter; it is a prohibition against aesthetic refinement on Shabbat. Treat your physical appearance as "finished" from the moment of candle lighting.