In 1921, a small group of Sigheter Hasidim in Klausenburg, outraged by the outspoken Zionism of the Klausenburger Rav, Rabbi Moshe Shmuel Glasner, decided to form a separatist "Sephardic" community not subject to the authority of a Zionist rabbi. They chose as their spiritual leader Rabbi Joel Teitlebaum, the younger brother of the Sigheter Rebbe, who later became the Satmarer Rebbe. In the course of the heated controversy surrounding the breakaway from an established Orthodox community, a justification of the breakaway was published in form of a volume entitled Mishpat Tzedeq, which consisted of a halakhic defense of the breakaway by a number of prominent Hungarian rabbis and of assorted vitriolic and slanderouss personal attacks against the Klausenburger Rav. To defend the Rav against the attack, his supporters published a rebuttal volume entitled Yishuv Mishpat. One of the contributors to the volume was Rabbi Avraham Yitzhaq ha-Kohein Kook. His contribution, in the form of an open letter in hebrew to the Hungarian rabbis supporting the breakaway, is reproduced as follows.

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