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3 Thank you, Shmuel Brin!
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The fourth responsum in volume 1volume 1 (Orach Chayim) of Rabbi Yoel Teitelbaum's Divre Yoel refers (near its start) to "פסקו של מרן ז״ל בד״ח ח״ב סי׳ ו׳", "the ruling of our master's (OBM) in D.Ch. volume 2 chapter 6". What author and volumework are referred to?

The fourth responsum in volume 1 (Orach Chayim) of Rabbi Yoel Teitelbaum's Divre Yoel refers (near its start) to "פסקו של מרן ז״ל בד״ח ח״ב סי׳ ו׳", "the ruling of our master's (OBM) in D.Ch. volume 2 chapter 6". What author and volume are referred to?

The fourth responsum in volume 1 (Orach Chayim) of Rabbi Yoel Teitelbaum's Divre Yoel refers (near its start) to "פסקו של מרן ז״ל בד״ח ח״ב סי׳ ו׳", "the ruling of our master's (OBM) in D.Ch. volume 2 chapter 6". What author and work are referred to?

2 added 67 characters in body
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The fourth responsum in volume 1volume 1 (Orach Chayim) of Rabbi Yoel Teitelbaum's Divre Yoel refers (near its start) to "פסקו של מרן ז״ל בד״ח ח״ב סי׳ ו׳", "the ruling of our master's (OBM) in D.Ch. volume 2 chapter 6". What author and volume are referred to?

The fourth responsum in volume 1 (Orach Chayim) of Rabbi Yoel Teitelbaum's Divre Yoel refers (near its start) to "פסקו של מרן ז״ל בד״ח ח״ב סי׳ ו׳", "the ruling of our master's (OBM) in D.Ch. volume 2 chapter 6". What author and volume are referred to?

The fourth responsum in volume 1 (Orach Chayim) of Rabbi Yoel Teitelbaum's Divre Yoel refers (near its start) to "פסקו של מרן ז״ל בד״ח ח״ב סי׳ ו׳", "the ruling of our master's (OBM) in D.Ch. volume 2 chapter 6". What author and volume are referred to?

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Who's מרן and what book is ד״ח in דברי יואל?

The fourth responsum in volume 1 (Orach Chayim) of Rabbi Yoel Teitelbaum's Divre Yoel refers (near its start) to "פסקו של מרן ז״ל בד״ח ח״ב סי׳ ו׳", "the ruling of our master's (OBM) in D.Ch. volume 2 chapter 6". What author and volume are referred to?