Rabbi Baruch Bodenheim: Gemara Shabbos: Perek Kirah, יום רביעי, Rosh Chodesh Cheshvan, Daf 42a Sugya – Kli Sheini (10/22/25)

Gutten Chodesh 

Very quickly review גמרא דף מב. “אבל נותן (two dots – ten lines from top of the Amud) until “סבר רב יוסף למימר” 

Quickly review תוס’ “נותן 

Questions:

The דף מ עמ’ ב stated that a Kli Sheini does not cook. Why is it prohibited to pour cold water into a cup of Kli Sheini – hot water according to Beis Shammai? 

Rashi says because of תתאה גבר

Tosfos – תוס’ “נותן – says it’s a gezaira drabanan so person won’t come to pour cold water into a Kli Rishon. 

According to Rashi why does בית הלל permit pouring cold water into a cup of hot water?

How does Rashi answer the questions of Tosfos regarding תתאה גבר ?

What is the exact case of חמין לתוך צונן & צונן לתוך חמין?

Note – how Tosfos explains the case of pouring hot water into cold water and vice versa 

Review תוס’ “אבל

Tosfos explains the אמבטיה in the Halacha of our Gemara is a Kli Sheini. 

Why is it forbidden to pour cold water into the bath if it’s a Kli Sheini?

Bring a proof from Rashi whether the bath is a Kli Rishon or a Kli Sheini 

Learn ר”ן 

https://hebrewbooks.org/pdfpager.aspx?req=37953&st=&pgnum=588

https://hebrewbooks.org/pdfpager.aspx?req=37953&st=&pgnum=589

Is the Ran the same or different than the explanation of Tosfos?