The long Baal Shem Tov story, part 3

Several weeks later, in Elul, R. Chaim Rappaport visits the Baal Shem Tov in Medzibuzh and hears the underlying story behind his mission to the abandoned estate. 160 years previously, a talmid chacham from Prague moved to Lvov. Known as “R. Shmuel
Tzadok, the opponent of Kabbalah and Mussar", his hostility to Mussar, and to
Kabbalah in which he had no faith, he implanted in his sons R. Moshe and R. Yehudah Arye.