 The ninth volume deals exclusively with the Passover Haggadah.In addition to displaying a thorough familiarity with Talmud, Midrash, Kabbalah, and other classic Jewish sources, Bornsztain presents many of the ideas of his father, Rabbi Avrohom Bornsztain, the first Sochatchover Rebbe, who was known as the "Avnei Nezer" after the title of his major work.The volume on the Pesach Haggadah was published first by Bornsztain's son and successor, Rabbi Dovid Bornsztain, the third Sochatchover Rebbe, in Piotrków in 1927.