Rabbi Avraham Meisels: Gemara Pesachim – First Perek – Or LeArba’ah Asar – Daf 14b – Daf 15a – Amar Rava… (06/10/25)
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Click on Right Side of Player to Download the Shiur
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
Click on Right Side of Player to Download the Shiur
Quickly review the גמרא דף לט. “ולא יטמיננה בחול (two dots – middle of the Amud) until the bottom of the Amud
Question:
There is a machlokes as to why ר’ יוסי agrees it is forbidden to submerge an egg in hot sand on Shabbos.
Are these reasons mutually exclusive? If yes. Yes?
Learn תוס’ “ואין
Learn תוס’ “אלא
We rule lhalacha like the Rabanan, why does the Gemara spend time explaining the opinion of ר’ יוסי. What relevance does it have?
Learn the גמרא דף לט. “ולא יטמיננה בחול (two dots – middle of the Amud) until the bottom of the Amud
Learn תוס’ “ואין
Learn תוס’ “אלא
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Review גמרא דף לט. “ולא יפקיענה בסודרין (five lines from top of the Amud) until “ולא יטמיננה בחול (next set of two dots)
See רש”י דף לט. “דשרי who says the reason it is permitted to cook something directly from the sun is because “אין דרך בישול בכך”
Major Question:
We have a rule in הלכות שבת when a melacha is performed in an abnormal way it is exempt from Torah violation however it is still prohibited מדרבנן. So how could it be permitted to cook directly from the heat of the sun?
There are prohibitions of cooking in regards to other halachos. For example – cooking meat and milk together, cooking the Korban Pesach.
If someone were to cook in the sun or a product that was heated by the sun would they be transgressing that prohibition?
See גמרא פסחים דף מא. “אמר רב חסדא המבשל (ten lines from bottom of the Amud) in regards to cooking the קרבן פסח in חמי טבריא.
https://hebrewbooks.org/shas.aspx?mesechta=4&daf=41&format=pdf
See רמב”ם ה’ מאכלות אסורות פרק ט הלכה ו in regards to cooking meat and milk together in חמי טבריא
https://hebrewbooks.org/pdfpager.aspx?req=58960&st=&pgnum=133
Learn אגלי טל מלאכת אופה ס”ק מד
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=264
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=265
Learn אגרות משה או”ח חלק ג ס’ נב who gives a different explanation than the אגלי טל
https://hebrewbooks.org/pdfpager.aspx?req=919&st=&pgnum=351
https://hebrewbooks.org/pdfpager.aspx?req=919&st=&pgnum=352
Based on the above would cooking in a microwave be a violation from the Torah, Drabanan, or permitted barring the operation of electric appliance on Shabbos
See שו”ת מנחת שלמה קמא ס’ יב הערה ו & ז for a new explanation different than the אגלי טל and אגרות משה
https://hebrewbooks.org/pdfpager.aspx?req=15096&st=&pgnum=149
https://hebrewbooks.org/pdfpager.aspx?req=15096&st=&pgnum=150
Learn גמרא דף לט. “ולא יפקיענה בסודרין (five lines from top of the Amud) until “ולא יטמיננה בחול (next set of two dots)
Question:
Why is it permitted to cook directly from the heat of the sun?
See רש”י דף לט. “דשרי who says “דאין דרך בישול בכך
Major Question:
We have a rule in ה’ שבת when a melacha is performed in an abnormal way it is exempt from Torah violation however it is still prohibited מדרבנן. Why is it permitted to cook directly from the heat of the sun?
Learn אגלי טל מלאכת אופה ס”ק מד
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=264
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=265
Learn אגרות משה או”ח חלק ג ס’ נב
https://hebrewbooks.org/pdfpager.aspx?req=919&st=&pgnum=351
https://hebrewbooks.org/pdfpager.aspx?req=919&st=&pgnum=352
If someone cooks the קרבן פסח in חמי טבריא did they violate the prohibition of cooking קרבן פסח in water?
See גמרא פסחים דף מא
https://hebrewbooks.org/shas.aspx?mesechta=4&daf=41&format=pdf
If someone cooks meat and milk together in חמי טבריא did they violate the prohibition of cooking בשר בחלב?
See רמב”ם ה’ מאכלות אסורות פרק ט הלכה ו
https://hebrewbooks.org/pdfpager.aspx?req=58960&st=&pgnum=133
Based on the above would cooking in a microwave be a violation from the Torah, Drabanan, or permitted barring the operation of electric appliance on Shabbos
See שו”ת מנחת שלמה קמא ס’ יב הערה ו & ז for a new explanation different than the אגלי טל and אגרות משה
https://hebrewbooks.org/pdfpager.aspx?req=15096&st=&pgnum=149
https://hebrewbooks.org/pdfpager.aspx?req=15096&st=&pgnum=150
Halachic conclusion הלכות שהייה
How do we conclude lhalacha? Do we rule like Rabanan or like Chanania?
Review שולחן ערוך ס’ רנ”ג סע’ א which brings two opinions.
Question:
According to which opinion does the מחבר conclude?
Bring a proof
Learn the Mishna Berura
Is the רמ”א concluding the halcha is in accordance with Chanania or saying that if one follows the accepted Minhag like Chanania it is Ok, but really should follow like Rabanan?
Learn ביאור הלכה “ונהגו להקל כסברא אחרונה And הגהות חזון איש on the ביאור הלכה who argue what is the ruling of the רא”ש
https://hebrewbooks.org/pdfpager.aspx?req=60388&st=&pgnum=45
https://hebrewbooks.org/pdfpager.aspx?req=60388&st=&pgnum=46
https://hebrewbooks.org/pdfpager.aspx?req=60388&st=&pgnum=47
https://hebrewbooks.org/pdfpager.aspx?req=60388&st=&pgnum=48
https://hebrewbooks.org/pdfpager.aspx?req=60388&st=&pgnum=49
Questions:
Can one rinse an uncooked food by pouring directly on it from a כלי ראשון?
Can one soak an uncooked food in a כלי שני?
Learn תוס’ דף לט. “כל who brings a major machlokes Rishonim as to the status of עירוי כלי ראשון
Learn גמרא דף לט. “ולא יפקיענה בסודרין (five lines from top of the Amud) until “ולא יטמיננה בחול (next set of two dots)
Question:
Why is it permitted to cook directly from the heat of the sun?
See רש”י דף לט. “דשרי who says “דאין דרך בישול בכך
Major Question:
We have a rule in ה’ שבת when a melacha is performed in an abnormal way it is exempt from Torah violation however it is still prohibited מדרבנן. Why is it permitted to cook directly from the heat of the son?
Learn אגלי טל מלאכת אופה ס”ק מד
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=264
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=265
Learn אגרות משה או”ח חלק ג ס’ נב
https://hebrewbooks.org/pdfpager.aspx?req=919&st=&pgnum=351
https://hebrewbooks.org/pdfpager.aspx?req=919&st=&pgnum=352
If someone cooks the קרבן פסח in חמי טבריא did they violate the prohibition of cooking קרבן פסח in water?
See גמרא פסחים דף מא
https://hebrewbooks.org/shas.aspx?mesechta=4&daf=41&format=pdf
If someone cooks meat and milk together in חמי טבריא did they violate the prohibition of cooking בשר בחלב?
See רמב”ם ה’ מאכלות אסורות פרק ט הלכה ו
https://hebrewbooks.org/pdfpager.aspx?req=58960&st=&pgnum=133
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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