R’ Chaim of Sanz Refused to Recite the Psalm ‘Ledavid Hashem Ori’ During Ellul… August 26, 2019 – כ״ה באב תשע״ט by Hyehudi EditorAuthored by: העורך Editor… Because he said the custom originated from the Chemdat Yamim.Source: Kotzk Blog here. Some other articles:The Three Oaths: An Academic OverviewThe Whole ‘Tu Beshvat Seder’ Comes from Highly Suspect ‘Chemdat Yamim’The Abbreviated Case Against SmokingProto-Zionist R’ Schneersohn, as R’ A. Y. Shlesinger, Also Opposed Old ‘Kollel’ Mendicant SystemA Short Introduction to the ‘Chemdat Yamim’ Book ControversyPowered by YARPP.