הרב ישראל רייזמן שליט”א
Rabbi Yisrael Reisman in his shiur raises several sources in Chazal that he argues are incongruent with Murex as the true source of Techeiles. Most notably, he understands that the area where Murex is found (off the coast of northern Eretz Yisrael) is not in Cheilek Zevulun.
Shiur #1 and #3 Shiurim are courtesy of YU Torah.
- A Response to Rabbi Reisman by Rav Aryeh Lebowitz
- תשובה להרב רייזמאן
- תשובה להרב רייזמאן – התכלת בתלמוד בבלי
Rabbi Reisman’s son Rabbi Eliyahu Simcha published a short article regarding the issue of Cheilek Zevulun: