Rabbi Avraham Meisels: Gemara Pesachim – First Perek – Or LeArba’ah Asar – Daf 14b – Daf 15a – Amar Rava… (06/10/25)
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Review the גמרא דף לט. “אמר רב נחמן (bottom of the Amud) until דף לט: מעשה (two dots)
List the three explanation of תוס’ דף לט: ממעשה as to what is the chidush that it is prohibited to immerse a pipe of cold water inside the חמי טבריא
Is the case of immersing a pipe of cold water inside the חמי טבריא on Friday or Shabbos?
Why is the water prohibited?
Learn דף לח: “מעשה
Write out the three explanations of Tosfos
Major Question:
How are the reasons why one may not use the water that was heated up inside the חמי טבריא consistent with reason why it is prohibited to immerse an egg in hot sand on Shabbos?
Learn רשב”א דף לט: “אמר רב חסדא
Halachic Conclusion: for שהייה
One is permitted to leave a lot of food on stovetop that is not גרוף וקטום if one places a raw piece of meat inside the pot shortly before Shabbos.
What is the cutoff point for it to be considered raw and not yet started cooking
When one accepts Shabbos or shkia?
What is considered מאכל בן דרוסאי half way cooked or half time of cooking?
I will send sources later see igros Moshe and chazon ish and shemiras Shabbos
Quickly review the Magen Avraham ס’ שי”ח ס”ק י until “כתב הרמב”ם who quotes the מהרש”ל who learns from our Gemara that it is permitted to roast an egg on the hot tar of a roof.
Question:
Why would it be permitted according to the Rabanan?
The Magen Avraham disagrees. Why?
https://hebrewbooks.org/pdfpager.aspx?req=14325&st=&pgnum=153
Learn the משנה ברורה ס’ שי”ח ס”ק כ how we rule lhalacha
Learn the גמרא דף לט. “אמר רב נחמן (bottom of the Amud) until דף לט: מעשה (two dots)
Question:
What is the chidush that it is prohibited to immerse a pipe of cold water inside the חמי טבריא ?
Learn תוס’ דף לט: ממעשה
Is the case of immersing a pipe of cold water inside the חמי טבריא on Friday or Shabbos?
Why is the water prohibited?
Learn דף לח: “מעשה
Halachic conclusion of the גמרא דף לט. “ולא יטמיננה בחול (two dots – middle of the Amud) until the bottom of the Amud
Write a summary of the opinion of רבנן ור’ יוסי for בישול בחמה & תולדות חמה with the opinions of רבה ורב יוסף
Question:
We rule lhalacha like the Rabanan, why does the Gemara spend time explaining the opinion of ר’ יוסי. What relevance does it have?
According to the reason of שמא יטמין ברמץ is it permitted to submerge the egg on Friday afternoon?
Learn רשב”א “רבה
https://hebrewbooks.org/pdfpager.aspx?req=40907&st=&pgnum=58
https://hebrewbooks.org/pdfpager.aspx?req=40907&st=&pgnum=59
Learn Magen Avraham ס’ שי”ח ס”ק י
https://hebrewbooks.org/pdfpager.aspx?req=14325&st=&pgnum=153
Continue learning the גמרא דף לט. “אמר רב נחמן (bottom of the Amud) until דף לט: מעשה (two dots)
Learn תוס’ דף לט: ממעשה
Halachic Conclusion: for שהייה
One is permitted to leave a lot of food on stovetop that is not גרוף וקטום if one places a raw piece of meat inside the pot shortly before Shabbos.
What is the cutoff point for it to be considered raw and not yet started cooking
When one accepts Shabbos or shkia?
What is considered מאכל בן דרוסאי half way cooked or half time of cooking?
I will send sources later see igros Moshe and chazon ish and shemiras Shabbos
Halachic conclusion of the גמרא דף לט. “ולא יטמיננה בחול (two dots – middle of the Amud) until the bottom of the Amud
Write a summary of the opinion of רבנן ור’ יוסי for בישול בחמה & תולדות חמה with the opinions of רבה ורב יוסף
Question:
We rule lhalacha like the Rabanan, why does the Gemara spend time explaining the opinion of ר’ יוסי. What relevance does it have?
According to the reason of שמא יטמין ברמץ is it permitted to submerge the egg on Friday afternoon?
Learn רי”ף
https://hebrewbooks.org/pdfpager.aspx?req=37953&st=&pgnum=585
Learn רא”ש ס’ ה
https://hebrewbooks.org/pdfpager.aspx?req=37953&st=&pgnum=352
https://hebrewbooks.org/pdfpager.aspx?req=37953&st=&pgnum=353
Learn רשב”א “רבה
https://hebrewbooks.org/pdfpager.aspx?req=40907&st=&pgnum=58
https://hebrewbooks.org/pdfpager.aspx?req=40907&st=&pgnum=59
Learn Magen Avraham ס’ שי”ח ס”ק י
https://hebrewbooks.org/pdfpager.aspx?req=14325&st=&pgnum=153
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Aveida Bava Metzia Chanukah Chetzyaich Divrei Chizuk Eilu Metzios Emunah Gemara Halacha Hashkafa Kiddushin Kohanim Krias HaTorah Krias Sefer Torah Machshava Makkos Makom Mashkon Menorah Mini Mussar Mishna Berura Mussar Nesiyas Kapayim Parashah Parsha Pesach Pesach Seder Purim Rabbi Baruch Bodenheim Rabbi Gershon West Rabbi Shlomo Singer Rabbi Shmuel Suslovich Rambam Rashi Ritva Rosh Rosh Hashana Shtar Siman Tisha B'Av Tosfos Yeush Yeush Shelo Midaas Yom Iyun Yom Kippur