The Rambam, or Maimonides, was a famous 12th century Rabbi, philosopher, and physician. He wrote the Mishneh Torah and the Moreh Nevuchim (Guide to the Perplexed).

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Rambam claiming some of Hazal were superstitious

I forgot where, but I remember reading the Rambam z"l saying that some Hazal believed in superstitions, ideas such as ayeen haro because they lived in small villages with lack of science, and ...
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From Moshe to Moshe… no one greater?

On Maimonides tomb is written the epitaph: “From Moshe to Moshe, none arose like Moshe!” We can read in many sources (e.g. http://asknoah.org/essay/rambam) that this implies Rambam was the greatest ...
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Article of R. Dr. Twersky on Mishne Torah

Is R. Dr. Yitzchak Twersky's article: "Some Non-Halakhic Aspects of the Mishneh Torah," published in: Jewish Medieval and Renaissance Studies, ed. A. Altmann (Cambridge, 1967), pp. 95-118, available ...
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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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Where to tie the Maimonidean half-tekheleth?

According to the Rambam that the tekhelet strand if only half-dyed, where exactly should the halfway-mark (or, in the strings I've seen, the transition portion) fall? Should it be up against the hole ...
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Does Maimonides Allow Prayer to Angels?

In his Mishna Commentary to Sanhedrin 10:1 Maimonides lists as his 5th principle the prohibition to pray to an angel even as an intermediary. He counts this in his enumeration of his 13 principles in ...
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71 views

Ein Halakha K'niflag

This article cites a principle in the name of R. Saadya Gaon and Rambam that אין הלכה כנפלג. He cites כתבים לגר"י קאפח, ח"ב עמ' 557. Where can this be found in the writings of the Geonim or Rambam? ...
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Illustrated hilchot Kiddush Hachodesh

I remember seeing about 20 years ago a beautiful annotated commentary on Rambam's hilchos kiddush hachodesh, with extensive illustrations and calculations, explained according to both ancient and ...
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Making a siyum on a chelek of the Rambam

Is making a siyum on a chelek (section) of the Rambam good enough to absolve one from fasting taanis bechoros, or allowing one to eat meat during the nine days? I have never seen someone make a siyum ...
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PreRishonic sources against the tekhelet half-string

What are the classical (pre-rishonic) sources explicitly or implicitly against the view of the Rambam that the tekheleth string is only half-dyed?
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The pre-Maimonidean half-tekheleth string

Are there any sources prior to the Rambam that suggest (even implicitly) that the tekheleth string is only half-dyed?
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145 views

Is Rambam's opinion about Nidda and Zava cycle rejected?

There's a famous minority opinion of Rambam that, Biblically, the nidda and zava cycle is continuous--7-11-7-11-7 days ad infinitum, and that most Rishonim argue on him and hold the cycle is 7-11 days ...
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Rambam on color certainty of tekheleth

According to a questioner on this page, the Rambam in the Pirush HaMishna contradicts the Rambam in Hilchoth Tzitzith regarding whether we can dye tekheleth due to uncertainty about the color. Where ...
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Authorship of Summarized Sefer Hamitzvos

Are there any sources that claim that Rambam didnt author the summarized sefer hamitzvos (מנין מצות הקצר)?
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Shem Yosef on Mishne Torah?

Who authored the Shem Yosef commentary on Rambam's Mishneh Torah? This work is featured on the online bar-ilan database.
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138 views

Rambam, Shkiah, and Tzet HaKokhavim

In the dispute between the Geonim and Rabbenu Tam over the definition of nightfall, I have seen the Rambam claimed by either side - each claiming that in the Mishneh Torah he held like them. My ...
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Did the Rambam write in response to the Ibn Ezra?

According to some interpretations (including, it seems, the explanations of Spinoza) the Ibn Ezra's commentary makes allusion to the idea that some of the Torah (beyond the talmudic discussion of the ...
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Why doesn't the Rambam mention the Brochah on Tevillas Keilim?

Why doesn't the Rambam mention the Brochah on Tevillas Keilim? Even if he holds its a Mitzve Drabanon (as this is subject to an argument), but by others he specifies the Brochah. So why is it ...
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How can the Rebbe be considered Moshiach?

I've talked to various Chabad Rabbis, and I can say for certain that at least 1 definitely believes that the Rebbe could be Moshiach. In trying to prove this, he cites Rambam's Mishneh Torah ...
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Writings of R. David Hanaggid

Are the Midrash David on Mo'adim of R. David Hanaggid, or any of his other writings (besides for the Midrash David on Avos) available for free online?
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47 views

Writings of R. Ovadiah Maimuni

Are any of the writings of R. Ovadiah Maimuni, Rambam's grandson such as The Treatise of the Pool available for free online?
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Citing the Jerusalem Talmud and Mishna Torah [duplicate]

How would you write an academic citation (format agnostic) for the Jerusalem Talmud or the Mishna Torah? i.e. a specific quote from each. I'm specifically asking about these as there is no standard ...
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88 views

The Vilna Gaon's distinction between the Rambam and the Ramban

I heard quoted in the name of the Vilna Gaon that (one of) the differences between the Rambam and the Ramban is that that Rambam held reality to be an 'Objective Reality' while the Ramban held that ...
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What is Rambam's opinion on Demons

In Mishne Torah A.Z (11:16) he says that sorcery and mysticism in general does not exist but doesn't refer to demons explicitly. Does the Rambam speak about demons specifically anywhere else?
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Source of “Koteret”

I have heard Rambam's presentation of the mitzvos at the beginning of each set of halachos referred to as the כותרת (koteret). What is the source for this usage?
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Responsum of Maimonides Regarding Translating Mishne Torah

The Maimonides Reader (p. 478) quotes Rambam's responsum to Ibn Gabir regarding translating the MT (also referenced here). He responds to a request from this Arabic speaker who was able to learn ...
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What was the earliest use of the Rambam's language in Shmita V'Yovel in support of kollel study?

Here's the Rambam, waxing poetic at the end of Laws of Shmita and Yovel (and his entire volume of Zeraim): ולא שבט לוי בלבד, אלא כל איש ואיש מכל באי העולם אשר נדבה רוחו אותו והבינו מדעו להיבדל ...
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R. Moses al-Ashkar's Response to Sefer ha-Emunot

Where can I find the Maharam al-Ashkar's response to Shem Tov ibn Shem Tov's Sefer ha-Emunot (Hassagot Al Mah She-Katab R. Shem-Tov Neged ha-RaMbaM)?
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Which opinion of the Rambam is followed, the Mishneh Torah or the Responsum?

If there is a contradiction between something the Rambam wrote in the Mishneh Torah and his responsum letters, which is considered his final ruling? Is there a general rule or is it a case by case?
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What were the Rambam's sources?

In the introduction to the Mishneh Torah, the Rambam indicates that his compilation of the entire Oral Torah is derived from a few key Jewish texts: ואין צריך לומר הגמרא עצמה הבבלית והירושלמית ...
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Rambam's relationship with the Rif: a question on the Bartenura

In the Mishna to Chullin 4:6 (s.v. וכן שניטל צומת הגידין), the Bartenura refers to the Rif as having been the Rambam's teacher: "ושיטה זו תפסו רבותי... אבל רמבם ורב אלפס רבו תפסו עיקר הפירוש אחר". In ...
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Rambam's statement about a blessing from the Ri Migash

The Artscroll Rishonim history book, in the section about the Rambam, records a "tradition" that the Rambam, as a young child, received a blessing from the Ri Migash, and that he (the Rambam) later ...
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Perush Hamishna of Rambam Online

Where can I find Maimonides' commentary to the Mishna online (for free) as text?
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55 views

Doing a Mitzva Yourself

Does Rambam ever mention (or reference) the principle that it is preferable to perform every mitzva oneself rather than through an agent? (See e.g. Kiddushin 41a).
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Maimonides' 13 Principles

What are the earliest sources who state that the thirteen principles of Maimonides are authoritative?
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Who uses/used the Rambams hagadah for the Seder?

Who uses/used the Rambam's Hagadah for the Seder (besides Teimanim)?
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Is the Rambam Haggadah Significantly Different?

Are there significant differences between the Rambam Haggadah and the current mainstream Haggadot that are in use?
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Why is Ona'as Devarim not in Hilchos De'os?

The Rambam places most of the laws regarding social, interpersonal relationships (such as the prohibition against slander) in Hilchos De'os, but he seems to be missing an important one: ona'as ...
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Are We Biblically Commanded to Study the Oral Law According to Maimonides?

Rambam writes in Hil. Talmud Torah (1:7) that one must pay to teach his son the entire written Torah. וְחַיָּב לְלַמְּדוֹ בְּשָׂכָר עַד שֶׁיִּקְרָא תּוֹרָה שֶׁבִּכְתָב כֻּלָּהּ Kessef Mishna ...
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Mishneh Torah Artwork

In my yeshiva there is a library that has many very old seforim. While exploring the library I came across a volume of the Mishneh Torah which seems to be from 1574. I opened it and was surprised to ...
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Historical documentation that the Rambam was supported by his brother

I have heard quoted many times that the Rambam wrote his Mishneh Torah while he was being supported entirely by his brother. It was only after his brother died at sea that the Rambam, needing to ...
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Why does the 5th verse of “Yigdal”, not mention prayer as does the 5th principle of faith of the Rambam?

The piyyut, “Yigdal”, seems to put the 13 principles of faith of the Rambam in poetic form. With number 5, the author of Yigdal seems to have made a slightly different point to the Rambam by leaving ...
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Why is the ger toshav only accepted during the times of the Jubilee?

Why is the ger toshav only accepted during the times of the Jubilee? "A person who accepts these seven mitzvot is a ger toshav. A ger toshav may be accepted only in the era when the [laws of the] ...
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What is the original (Judeo-Arabic) of “gates of interpretation are not locked before us” in Moreh Nevuchim?

What is the original phrasing of the "gates of interpretation are not locked before us" (i.e. ולא שערי הפירוש סתומים בפנינו) in Guide to the Perplexed 2:25? That is, what is it in Rambam's ...
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Why does the Rambam change language?

In Hilchos Megillah V'Chanukah, the Rambam writes in 2:15 טו. כיצד חובת סעודה זו שיאכל בשר ויתקן סעודה נאה כפי אשר תמצא ידו, ושותה יין עד שישתכר וירדם בשכרות Why does the Rambam switch from ...
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Purpose of Beis Hamikdash

Rambam writes that the purpose of the beis hamikdash is specifically for offering sacrifices and for pilgrimages (Sefer Hamitzvos: Shoresh 12): שיהיה לנו בית מוכן יבאו אליו ויחוגי בו ובו תהיה ...
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Are Segulot a Prohibition of Nichush?

Rambam Hilchot Avodat Kochavim 11:12 writes: הלוחש על המכה וקורא פסוק מן התורה, וכן הקורא על התינוק שלא יבעת, והמניח ספר תורה או תפילין על הקטן בשביל שיישן - לא די להם שהם בכלל מנחשים וחוברים, אלא ...
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Why did the Rabbis make a decree for Yovel?

Rambam (Hilchos Tefila 2:8) says that בד"א ביום צום של כל שנה ושנה אבל ביום צום של שנת היובל מתפלל תפלת המוספים תשע ברכות כמו שהתפלל במוסף ראש השנה והם אותן הברכות עצמן לא פחות ולא יותר ואין ...
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Rambam's Talmud Commentary

Where can I find Rambam's commentary on Bavli (whatever remains of it) besides for his commentary on tractate Rosh HaShana?
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Rambam's Hilchos HaYerushalmi

I am looking for Rambam's Hilchos HaYerushalmi (ed. Lieberman) (or a some other edition if it exists). Is it available for free online?