25

You ask, "let's say that Murex is not the chilazon, and we have some strings that have been dyed blue for no reason. What's the problem with that?" (my emphasis) If there really is no reason to dye them blue whatsoever, then doing so would be a violation of the Shulchan Aruch (9:5), who says that careful people use strings of the same color as the garment, ...


14

If you honestly believe that you are wearing true tekhelet then you are not in violation of the Gemara (BM 61b). If your tekhelet turns out to be false tekhelet, then you will have only fulfilled the mitzvah of tzitzit but not the aspect of tekhelet, as the Gemara (Men. 40a) explains is the case for one who unwittingly wore kela ilan - see my article "False ...


9

An incomplete list: R' Meir Mazuz (on Shabbat) - source R' Herschel Schachter R' Yisroel Belsky (when wearing a long frock coat to cover it) R' Abraham Twerski (source) R' Zalman Nechemia Goldberg R' Simcha Kook R' David bar Hayim R' Yehoshua Buch R' Yoel Bin-Nun (only on his suit-jacket) R' Moshe David Tendler (source) R' Tzvi Hersh Weinreb (source) R' ...


8

The Maor HaGadol (R' Zerachiah HaLevi) discusses this issue on Shabbat 11b in the pagination of the Rif. He argues that in fact the halacha follows Rebbe and not R Yochanan ben Nuri (RYBN) that tzitzit require both blue and white to be kosher. He makes 3 arguments to this end: RYBN is a lone opinion and the general rule is that the halacha follows Rebbe ...


8

One argument is from Chazal's silence regarding animal dyes. Chazal spend much time lambasting Kalei Ilan (the plant based indigo), but never once complain about a fake animal based indigo (by 'indigo' I mean a dye that is the right color and does not fade). So either there was only one animal based indigo dye and that was it, or there were others, but all ...


8

In Pesil Techeiles the Sixth Point (פתיל תכלת פרט הששי) the Radzyner Rebbe cites this Gemara as one of his proofs to the opinion of Rambam that one string is half techeiles and half white. The proof is that the Gemara asks what the Mishnah meant by "distinguish between techeiles and lavan", and rejects the possibility that it is referring to the ability to ...


7

His son printed it in the beginning of the Maharsham's sefer Techeiles Mordechai. The line about techeiles is in point # 2 and reads as follows: הטלית יקחו את הטלית טירקישען בלא העטרה וקשורים בו ציצית עם תכלת Here is an online source and here is an image of the text highlighted:


7

The Mishnah Berurah 9:7 mentions 2 strings of white and 2 strings of techeles this is the opinion of many rishonim(Rashi,Tosfos, Rosh,Itur,etc...). ז(ז) בזמן הזה - פי' דבזמן שהיה תכלת שהיה צריך להטיל ד' חוטין שני חוטי לבן ושני חוטי תכלת (הוא צמר צבוע בדם חלזון) והיה מתקיים עי"ז המצות ציצית כראוי התירה לנו התורה להטיל השנים של לבן בין מצמר או מפשתים בין בבגד ...


6

He does not. (My Brother In Law learned in his Yeshiva).


6

The source for the Chilazon being in the Kineret is the Zohar, II, 48b, on parashat Terumah: "And blue" (Shemot 25:3): Rabbi Yitzchak said: Blue [techelet] is from that fish that is in the Sea Genosar, WHICH IS THE SEA OF GALILEE, which is in the portion of Zvulon. This color is needed for the work of the tabernacle to show this color, AS IT IS WRITTEN ...


6

From http://tekhelet.com/tekhelet/ask-ptil-tekhelet/ Q. Who is the mashgiach on the process making sure it's lishma, etc.? Who gives the official hechsher? A. R. Eliyahu Tavger is the Rav of the Amuta. The workers doing the dyeing, spinning, twining of the threads are all yirei shamayim Jews who are very careful to state explicitly before every ...


6

I don't know if they address this concern particularly in terms of the expense. However, the knowledge that murex indigo is chemically identical to plant-based indigo is something knowable only in the 20th and 21st century, when we know about atoms, molecules, and chemicals. If plant-based indigo failed the gemara's test for fastness, and this was just a ...


6

This requirement is stated in the Tosefta and Meseches Tzitzith Tosefta Menachoth 9:16 "תכלת אין כשרה אלא מן החלזון הביא שלא מן החלזון פסולה." Tekheleth is only valid from the חלזון ; if one used a dye not made from the חלזון it is invalid.” מסכת ציצית פרק א הלכה י שאין צובעין תכלת אלא בחלזון. We only dye תכלת with a חלזון from: https:...


6

The Radzyner Rebbe wrote three books about it, so that would be a good place to check. Dr. Mendel Singer wrote an article about techelet, and in the course of the article, he mentions how the Radzyner Rebbe understood various sources in Chazal to refer to the cuttlefish. For example: the requirement of once in 70 years, the Radzyner Rebbe says this ...


6

I don't know if this is precisely what is meant by "running", but the Radziner Rebbe mentions that techeiles is supposed to be able to be washed out with soap, and the dye can also fade due to other factors (e.g. exposure to sunlight). The Radziner Rebbe cites the last Tosafos in Zevachim 95a as a source, as Tosafos there says that the dye in the High Priest'...


5

Numerous points were made here which need to be answered: (1) Regarding the reasons we believe that the Murex trunculus is indeed the hillazon of hazal, please see my latest article: http://tekhelet.com/pdf/TekheletThreadsOfReason.pdf (2) Regarding the Arizal's statement that after the hurban habayit tekhelet is no longer available, please see my article: ...


5

According to Wikipedia, Murex trunculus is found naturally around the entire Mediterranean Sea and Black Sea and on nearby coasts of the Atlantic, always in shallow water: seemingly, nowhere else.


5

הלכות קטנות לרא"ש (מנחות) הלכות ציצית סימן ו ו תנן בראש התכלת [שם דף לח א] התכלת אינו מעכב את הלבן הלבן אינו מעכב את התכלת. פירש"י אף ע"ג דמצוה לתת ב' חוטי תכלת וב' לבן בציצית אפילו הכי אין זה מעכב את זה ואי עביד ארבעתן תכלת או ארבעתן לבן יצא ולכאורה הוי משמע דאין זה מעכב את זה היינו שאם הטיל ב' חוטין מין אחד יצא כי הא דתפילין של יד אינה מעכבת של ראש ושל ...


4

I can come up with a few reasons of why to only wear it on Shabbat. You wear the best clothing on Shabbat. Techelet is Expensive, and to wear it every day might be too expensive to clean properly or to buy extra garments. However, on Shabbat you need to wear your best, so you buy a set of techelet for Shabbat. They only bought one set of Techelet strings, ...


4

You cite the Sifre Bamidbar 115 which states: ועשו להם ציצית שומע אני יעשה חוט אחד בפני עצמו ת"ל גדילים מכמה גדילים אתה עושה אין פחות משלשה דברי בית הלל ובית שמאי אומרים שלשה של צמר ורביעית של תכלת והלכה כבית שמאי But if you look at the Sifre Devarim 234, the other place in the Torah that talks about Tzitzit, it says: גדילים תעשה לך, למה נאמר לפי ...


4

The Midrash Tanchuma when explaining Korach's argument calls it a טלית שכולה תכלת, a garment made entirely of techeiles. Later it says לקח טליתו which may indicate that he confronted Moshe with his own garment. That said, there are some who have explained his argument as referring to the me'il. R. Yisrael Ariel suggests this in Ma'alin Bakodesh Vol. V p. 24:...


4

In fact it is mentioned according to the Ramban Bereishis 49: 12 the word חכלילי means כחל. Also the word כחלת is mentioned in Yecezkel 23:40 which means painting of the eyes. Rashi:כחלת. מין צבע ושמו כחול וצובעות בו עיניהם אוקליר"א בלע"ז: It seems its more of a blackish color or dark color,which fits with many descriptions of the dye of techeiles (before ...


4

Radzyner Techeiles Radzyner techeiles is made from the "ink" that is secreted from the Sepia Officinalis, i.e. the common cuttlefish. The Radzyner Rebbe, R. Gershon Chanoch Henoch Leiner was the first person in modern times to try to "rediscover techeiles". He wrote a short book called Sefunei Temunei Chol in which he outlines 10 criteria for identifying ...


3

Rabbi Yitzchok Yosef states (resp. Rishon LeZion OC §1) that after some have concluded upon thorough examinations that we have today authentic techeles, if one wants to wear them [concealed] then there is an element of hiddur. Rabbi Mordechai Eliyahu (written source cited here by his son R. Shmuel Eliyahu) did not personally wear techeles but held it was ...


3

Rav Hershel Schachter in this shuir at 29:30 says that some are afraid to wear techelis because of mechzei kyuhara,but he explains that is only talking about a middas chassidus not trying to fulfill a positive commandment. Whether one agrees with the idea of wearing techeiles or not if one wants to wear it the idea of mechzei kyuhara should not apply. The ...


3

Actually, the Rebbe, Rabbi Menachem Mendel Schneerson, did give a response which can be found in his Igrot Kodesh when he was asked in the 1960's (might have been early 1970's). He said that he had nothing to add to the response of the Rebbe Rashab, Rabbi Shalom Dovber Schneersohn, on the question. The Rashab was asked specifically about the Radziner ...


2

from http://doseofhalacha.blogspot.co.uk/2013/02/a-colourful-debate.html Question: I see some men walking around with a blue techeles thread on their tzitzis. If we know what techeles is, why don’t we all wear it? Answer: Wearing techeles was always an integral part of the mitzva of wearing tzitzis. Unfortunately, however, the art of making techeles ...


2

For Ashkenazim I still can't find an answer to this Taana- Safek Deorayta LeHumra. If you are Ashekenazi then until I hear otherwise I think you should wear Tekhlet. However, for Sephardim this isn't the case because the Techelet will only return at the time of the rebuilding of the bet hamikdash (see ben yohayada b"m 61b). EDIT: I found an answer from the ...


2

Based on overwhelming physical evidence. and 1) We knew the color from the authenticated remains of קלא אילן that were found in Wadi Murabaat, and Hazal say that the two are indistinguishable. 2) The massive archaeological evidence that Baruch Sterman came up with was convincing. 3) Rabbi Moshe Tendler had said that if there are physical remains of a ...


2

Moreinu Rav Eliyahu Ben-Haim (Rosh Av Beth Din Queens and Rosh Yeshiva at YU) strongly holds of the Techeles, and he himself wears on his Tallit Kattan and Gadol. On YUTorah you can hear many of his comments in regard to the wearing of the Techeles.


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