Siddur Im Dach contains numerous Hasidic interpretations of the Jewish prayers as well as discourses on
Chabad philosophy. The work also contains a number of rulings and customs as to the exact order and verses of Jewish prayer. According to the seventh Chabad Rebbe, Rabbi
Menachem Mendel Schneerson, the laws and customs as printed in
Siddur Im Dach are the most authoritative of all of Rabbi Schneur Zalman's works including the
Shulchan Aruch HaRav, the code of Jewish law written by the first Rebbe. Rabbi Menachem Mendel stated that the reasoning behind this stance is due to the fact that
Siddur Im Dach was compiled after Rabbi Schneur Zalman's other works. ==See also==