06/05/21 - SHIUR 325 (27,320 Downloads) The great Techeilis Debate – Hear from the Gedolei Hador and Gedolei Haposkim Speakers : Rabbi Shmuel Kamenetsky, Rabbi Menachem Mendel Shafran, Rabbi Dovid Cohen, Rabbi Hershel Shachter, Rabbi Nissan Kaplan, Rabbi Dovid Yosef, Rabbi Bentzion Halberstam, Rabbi Moshe Heinemann, Rabbi Michoel Shlomo Bar-Ron Category : Tcheilis Do we know what the Techeilis is – Is it the murex or the cuttlefish? Are you obligated to wear it because of Safek?