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12

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

Most of those people who don't accept the Machon Ptil Tekhelet's research and reasons do so because they are of the opinion that once a Mesorah has been lost, we can not get it back/reinstate it until Moshiach comes. Incidentally, I believe Rav Kook ZT"L was also of that opinion.


7

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' ...


6

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


6

The Gemara (Bava Metzia 61b) speaks pretty harshly about "one who attaches kala ilan [indigo] to his garment and claims that it's techeiles." Since, as Shalom noted, the identity of techeiles is in fact uncertain (I've heard of at least three different opinions what creature it comes from), that may be reason enough to avoid using what might be the wrong ...


6

The Rambam says that using the wrong techelet makes the tzitzit pasul. Additionally, if you don't use techelet at all you fulfill the mitzvah. Simply not a gamble worth taking - it's already a mitzvah in the bank. Mishna Torah - Hilchot Tzitzit- chapter 2, halacha 1: The term techelet when used regarding tzitzit refers to a specific dye that remains ...


5

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 ...


5

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 ...


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.


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 ...


4

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

He says (Hil. Tzitzis 2:8) that in that case you can make the "white" strings any color except black, because that's too similar in color to techeles. (Kesef Mishneh there adds that according to this, using the actual color of techeles - whether the real stuff, or indigo - would also be no good.)


4

They are slow to answer their email and sometimes hard to reach by phone. Ptil Tekhelet makes batches periodically and every batch comes out a slightly different shade of techeles. I don't think your scrap of fabric is such solid proof. Dyeing results vary, and just as the shade of techeles you get nowadays from Ptil Tehkelet varies from one batch to the ...


4

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: ...


4

For all the Halachic issues of the Tchelis see this shiur on YU Torah From Rabbi Yisroel Reisman Techeles Hachodosh-The Issues


4

http://hebrewbooks.org/pdfpager.aspx?req=31622&pgnum=403 Thhe Rebbe Rashab wrote to R' Leiner (The original re-discoverer of techeiles [even though he was found to have been fooled by the scientists of his day, yet the reasons of the Rebbe Rashab still apply to the modern day tcheiles.]). The Rebbe Rashab writes that it cannot be the real tcheiles ...


3

Two versions of Brisker Ravs response to Radziner Rebbe; one that's recorded in Radziner Rebbe's book is that there must be compelling archeological evidence that the tcheilis is indeed the correct version. Another verison passed down by word of mouth in the Soloveitchik family was that we lost the Mesorah. However, Rav Eliyashuv, in a letter adressed to his ...


2

They have some good evidence but there are also some issues. For example, why doesn't any earlier source mention that Techelet is from the same thing as Aragaman? It seems like a pretty basic thing that they should say when identifying the animal. Another problem is how the Gemara's test (to make sure it wasn't indigo) would work if Techelet is chemically ...


2

There's a new booklet being distributed (not very widely) by someone in Bnei Brak. In the front material has a very long letter by Rav Moshe Sternbuch shlita, which argues very strongly against bnei Torah wearing Ptil Tekhelet. Some of the reasons given sound a bit surprising to me (i.e. were beyond my limited understanding); one of them was this Zohar about ...


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

I know a rabbi who only wears on Shabbat because he thinks it's a reasonable chumra but he doesn't want his kids to grow up thinking that we have a mesora for techelet so he only wears on his Shabbat/Yom Tov Tallit Gadol. As for why then, he said that Shabbat is a traditional time to be more makpid on certain chumrot (for instance, putting salt on the bread ...


2

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 ...


2

I recommend that you discuss your own situation and best course of action with your rabbi. I posed this question, regarding my own entry into the techeilet world, to Rabbi Jack Bieler in Silver Spring. If I recall correctly, he told me that if I only felt I could afford one set of strings, I should go ahead and put them on one garment, and that whether that ...


1

Well, for one of the Rabbanim- Rabbi Meir Mazuz Shelit"a it is because he wants to show that it is not a Hiyuv.


1

Kesef Mishne on Rambam (1:6) seems to hold like the Rambam (see Maase Rokeach who to my understand also holds like Rambam). I also believe from Shu"T Hatam Sofer vol. 1 sim. 1 it seems he holds like Rambam. Therefor, the Halacha is like Rambam.


1

R' Shlomo Riskin - I saw it with my own eyes, and when someone asked about them, his exact comment was: You have an opportunity for a mitzvah d'orayta - how can you not wear them ? Later he mentioned that they were from P'til Techelet.


1

HaRav HaGaon Meir Mazuz Shelit"a (Mekor Ne'ema sim. 35). He writes that it "kedai-worthwhile" but not "mehuyav-obligatory" therefor he only wears it on Shabbat.


1

Normally, I would not want to give mystical oriented answers on this site, since they can be easily misunderstood, and it's a topic that normally should only be discussed in person. However, since it was implied in the comments that mystical reasons are an argument against techelet, I will explain the real reason of why I DO wear techelet. It says that ...


1

I was unable to ever get a hold of them. My best bet was to go to Jeruselem and buy them from the many stores there. I was able to find some dark threads, but none as dark as this picture.


1

as a matter of fact, Ptil's techelet is night light-blue at all, it maches the pic you posted quite well!



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