Halacha for Wednesday 9 Iyar 5781 April 21 2021

Knots Forbidden To Be Tied on Shabbat by Rabbinic Enactment and Those Permitted to be Tied

In the previous Halacha we have explained that two of the forbidden works on Shabbat are tying and untying a knot. We have likewise discussed some forms of knots which are forbidden to be tied on Shabbat by Torah law. We shall now discuss several forms of knots which are forbidden to be tied as a result of a rabbinic enactment somewhat more stringent than Torah law.

As we have explained, it is forbidden by Torah law to tie a “permanent knot” which is defined as a knot that is not meant to be untied in the near future. Similarly, the knot must be made “professionally”, i.e. if tying the knot requires some skill. It is therefore a Torah prohibition to tie the knot on a camel’s nose since this is a “professional” knot and is not meant to be untied.

Knots Forbidden by Rabbinic Enactment: Permanent or Professional Knots
Our Sages enacted that even if a knot is not tied in a professional manner, it is forbidden to be tied on Shabbat if it is permanent. This means that even if this knot can be tied by anyone and requires no special skill, nevertheless, if it is a permanent knot, one may not tie it. (Shulchan Aruch Chapter 317, Section 1)

An example of such a knot would be the knot tied to the pail hanging at the top of a well. Since the knot tied to the pail is never undone, although tying such a knot requires no specific skill, it is forbidden to tie it on Shabbat by rabbinic law.

Similarly, regarding a knot tied to a bit around an animal’s mouth, although no special skill is required to tie the bit, it is forbidden to tie such a knot on Shabbat if one never intends to untie it.

Additionally, if a knot is “professionally done” and requires some skill to tie it, although it is not permanent, one may not tie such a knot on Shabbat as a result of a rabbinic enactment.

Knots Permitted to be Tied on Shabbat
A knot which is neither professional nor permanent may indeed be tied on Shabbat, for our Sages only decreed not to tie a knot which fits either one of the Torah’s two criteria to forbid tying a knot on Shabbat, i.e. either it is a professional knot or a permanent one. However, a knot which is neither professional nor permanent may be tied on Shabbat. We shall discuss this matter further in the following Halacha.

Ask the Rabbi


ספר אביר הרועים - בית מידות
ספר אביר הרועים
לפרטים לחץ כאן

הלכה יומית מפי הראש"ל הגאון רבי יצחק יוסף שליט"א

דין ברכת שפטרנו מעונשו של זה
לחץ כאן לצפייה בשיעורים נוספים

Recent Halachot

"תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן העולם הבא"

נדה ע"ג א'

8 Halachot Most Popular

The Laws of Mentioning “Mashiv Ha’Ruach”

We Begin Reciting “Mashiv Ha’Ruach” “Mashiv Ha’Ruach U’Morid Ha’Geshem” is a praise we recite to Hashem during the winter months within the “Mechayeh Ha’Metim” blessing of the Amidah as is printed in all Siddurim. We begin recitin......

Read Halacha

The Laws of One Who Forgets to Mention “Ve’Ten Tal U’Matar” in the “Blessing of the Years”

In the previous Halacha, we have discussed in a general manner that our Sages enacted that beginning from the Seventh of Marcheshvan (outside of Israel from the Fourth or Fifth of December), one begins reciting “Ve’Ten Tal U’Matar” (a request for dew and rain) in the “B......

Read Halacha

Eating and Washing One’s Self Yom Kippur

Some Laws of Yom Kippur All are obligated to fast on Yom Kippur, including pregnant and nursing women. Any woman whose health is at risk due to the fast should consult a prominent Torah scholar who is well-versed in these laws and he should render his ruling whether or not she must fast. One whose ......

Read Halacha

“The Blessing of the Years”

Beginning from last night, the Seventh of Marcheshvan, we have begun to request rain in the Amida prayer (only in the Land of Israel; the law for those outside of Israel will be discussed further). Let us therefore review some of these pertinent laws. The Enactment of the Sages to Request Rain O......

Read Halacha


When the Sanctity of Shevi’it Will Apply to Fruits and Vegetables and More on “Heter Mechira”

In the previous Halachot we have explained that any produce grown in Jewish-owned fields in the Land of Israel this year (5782) retain the sanctity of Shevi’it. We have likewise discussed the ramifications of this sanctity and the proper way to treat such produce. This sanctity rests even on f......

Read Halacha

The Laws of Shevi’it in a Cooperative Garden

This year (5782) is the Shemitta year. In previous Halachot, we have already explained the basic laws of Shemitta including the fact that one may not plant in or work (in any manner) any land within the Land of Israel unless the work is meant to protect the crops from harm that will befall them if t......

Read Halacha

Sprouting Avocado Pits During Shevi’it and the Blessing on Hydroponic Produce

Question: What is the blessing on vegetables that grow from the water (and not from the ground)? Likewise, is it permissible to plant such hydroponic produce during Shevi’it? Answer: The Blessing on Mushrooms and Truffles The Mishnah in Masechet Berachot (40b) states: “On things whi......

Read Halacha

Forbidden and Permissible Forms of Work During Shevi’it

In this Halacha and the next, we shall discuss the basic laws of tending to a garden during Shevi’it. We shall not discuss all of the details of these laws, for these laws do not apply to those residing outside of Israel. Works Forbidden by Torah Law and Rabbinic Enactment Some works forbi......

Read Halacha