Mitzvah - commandment. This tag is for questions about the nature of commandments or the status of being a commandment. (However, many particular commandments have their own tags.)

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Maimonides' Responsum on Pre-Sinaic Mitzva Observance

The Maimonides Reader (p. 478) quotes Maimonides' responsum to Hasdai Ha-Levi where he states that our forefathers didn't keep the mitzvos at all. Where else can this responsum be found? ...
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Being Mekayem a zecher

According to the gemara (Megilla 29b, S"A O"C 685) there is a mitzvah to read the special reading of Parshat Zachor on a particular Shabbat (before Purim). This mitzvah is listed as one of the 613. I ...
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During the nine days, can we do something “slightly dangerous” in order to fulfill a mitzvah?

During the nine days, many hold that we refrain from activities that are considered even slightly dangerous; for example, air travel. However, I have read that R' Shlomo Zalman Auerbach (who ...
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Welcoming non-Jewish guests

Is there a mitzvah of welcoming guests who are non-Jews? I know Avraham welcomed non-Jews into his home, but that could be different for several reasons: There was no formal mitzvah and he was just ...
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Do the laws of Ribis apply to loans of virtual currency?

If a Jew lends a player in a multiplayer online game money, and he knows without a doubt that that player is Jewish, does the prohibition of ribis apply? (After all, the only thing that changed was a ...
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Is it a Mitzva Deorayta (Biblical Commandment) to serve in the IDF?

בס"ד What do the contemporary poskim say about the serving in the IDF? Do they consider it a Biblical commandment (mitzva de'orayta) if one chooses to serve? I am obviously not talking about the ...
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How do we celebrate Tu B'Av?

Besides the dancing maidens of Jerusalem, many other significant events occurred on Tu B'Av for it to be considered one of the holiest days of the year. As mentioned in a previous question, many ...
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Are you yotzei by lighting candles through a grama?

Does one fulfill the mitzvah of lighting candles (sabbath or chanukah) if done by a grama (indirect action)? Example
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Matzah Shemurah on the 8th day of Pesaḥ (in the Diaspora)

According to those who hold that there is a Kiyyum Mitzvath 'Aseh DeOraitha (a fulfillment of a positive Biblical commandment) every time one eats a KeZayith (olive size's worth) of Matzah on Pesaḥ, ...
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Does Publicizing Kiddush (or Chillul) Hashem Constitute That?

If someone (Jew of gentile) exposes an act of kiddush (or chas v'shalom chillul Hashem) to the world, does that person fulfill (or make him self guilty of) the same? (Based on this comment.)
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Pretending in kiyum hamitzvot

When a woman (or, if need be, a man) lights candles for Shabbat, she covers her eyes before making the bracha to "pretend" that the candles aren't lit yet because we generally say the bracha before ...
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How many disputed and undisputed Torah Mitzvot are there?

If you combine all the known lists of the "613 Mitzvot" (Rambam, Ramban, Semag, etc.), how many total mitzvot are listed by at least one person as a Mitzvah Deoreitya? I am curious to compare this to ...
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What type of mitzvah, if any, is a donation to medical research?

If I give money to a charity that finances medical research, I think I'm doing a mitzvah, but of what sort? Is this tzedakah when I'm not clothing or feeding the poor? Is it saving a life when there ...
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Meditation before Mitzvah activities

Who invented the meditation that is often printed before such things as counting the 'Omer, inviting the Ushpizin, and other Mitzvoth or Mitzvah-related activities, and what is the basis for it?
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Honoring a wicked father who has repented - How is he still considered wicked?

The Shulhan 'Aruch (Y"D 240:18) writes that one is obligated to honor his father even if the father is wicked (actually, it says that a Mamzer is obligated, but I believe that the implication is that ...
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Can a rabbincal mitzvah (that is currently being done) override a bibilical mitzvah?

There's a principle (will try to find the source later) that says that if one is in the midst of doing one mitzvah he is exempt from performing other mitzvot. Do both mitzvot have to be of the same ...
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What is the obligation of “Kedusha” (Holiness?)

The verse in Leviticus (19:2) says "you shall be holy" what is the parameter of this and to what degree is it binding. Rambam (Sefer Hamitzvos shoresh 4) writes that is is a general commandment to ...
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Is there a term for doing a mitzvah the same way every time?

I read in a book (why can't I find it when I want it?) that among the reasons that a tallit gadol has an atarah on it is because there is value in doing a mitzvah the same way each time. If it did ...
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Wanting to do a Mitzvah, getting paid for intent AND accomplishent

I heard from someone that whoever wants to do a mitzvah, Hashem gives him reward before he does the mitzvah, and after he does the mitzvah Hashem doubles it. Where is the source for this?
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D’oraita Sources for Halacha

We often see that the author of a p'sak maintains that a ruling is d’oraita even in cases when there is no link to any of the 613 mitzvot listed by Rambam, etc. Must every halacha ruled as a d’oraita ...
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Is there a pattern to Yonasan Ben Uziel's introduction to mitzvos?

Starting with the dibros, YbU introduces some mitzvos with the words 'Ami bnei Yisrael" and I don't see the pattern as to when he does and when he doesn't. Anyone have an idea which ones deserve this ...
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shehecheyanu on eruv tavshilin

It is a rabbinical mitzvah to make eruv tavshilin, it even comes with a blessing. If so, why don't we make a shehecheyanu on it?
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Unintentional Tosefes Shabbos

My shul newsletter misprinted candle lighting times this week --- instead of 8:01, it listed 7:48. This leads me to 2 questions: If I light candles at 7:48 because I think that that is the right time ...
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Choosing a mitzvah that one has an inner connection with

I was reading The Wisdom In The Hebrew Months Volume 2. On page 327 it says: Shlomo HaMelech said that if a person comes to ask which area he should choose to specialize in, the answer is: he should ...
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Chukim list with sources

My search is for a list of chukim. Since I don't like 'reinventing the wheel', I was wondering if there is one already available from some reference work.