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Shabbat · Orach Chaim 317

Killing Insects on Shabbat

14 questions · 57 opinions

Not a substitute for consulting a rabbi.

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What combination of permanence and craftsmanship makes one liable (chayav) for tying a knot on Shabbat?

6 opinions across 2 eras

Permanence vs. Craftsmanship

What duration makes a knot 'permanent' (shel kiyuma) such that it is at least rabbinically prohibited?

6 opinions across 2 eras

Does the law of untying (matir) mirror the law of tying (kosher) — i.e., is one liable for untying to the same degree?

4 opinions across 3 eras

Parity with Tying

Should one avoid tying or untying any double knot on Shabbat due to uncertainty about what constitutes a craftsman's knot?

5 opinions across 2 eras

Practical Stringency

Is a temporary craftsman's knot tied for the sake of a mitzvah permitted on Shabbat?

2 opinions across 2 eras

Mitzvah Exception

May one reinsert slipped shoe or sandal straps on Shabbat?

6 opinions across 2 eras

Shoes and Sandals

May one open the neckhole (beit ha'tzavar) of a garment that was tied by the launderer?

6 opinions across 2 eras

Launderer's Knot vs. New Ope…

May one tie a bucket to a well using a cord, belt, or rope on Shabbat?

4 opinions across 2 eras

Type of Material

Is a bow (aniva) considered a knot for purposes of Shabbat, and may one tie a single knot beneath a bow?

6 opinions across 2 eras

Status and Single Knot Beneath

May one tie a rope across a pen opening to prevent a cow from leaving on Shabbat?

2 opinions

Tying Across Opening

May one use a weaver's rope to tie a cow to a trough on Shabbat, and what about an ordinary rope?

3 opinions

May one insert a belt or cord into new pants or garments on Shabbat?

4 opinions across 2 eras

New vs. Used Garments

May a knot that is time-limited (not permanent) and strong (amitz) be tied or untied through a non-Jew on Shabbat?

1 opinions

Through a Non-Jew

Does a permanent knot require being very tight to incur liability?

2 opinions

Tightness Requirement