Siman - Shabbos Daf 4
- Dough on the oven door case
Rav Acha the son of Rava taught that Rav Bivi bar Abaye said conclusively if one [intentionally] attached dough to the wall of the oven [on Shabbos] the Rabbis permitted him to remove it before he comes to a transgression that carries the penalty of stoning.
- Resting in airspace
Rabba suggests the author of our Mishna is R’ Akiva who states that one does not require the עקירה and הנחה be done in a place that is at least four by four tefachim. This would explain why the poor person would be liable for lifting or placing an object in the homeowner’s hand which is less than four by four tefachim.
According to R’ Akiva, one who throws an object from one reshus hayachid to another reshus hayachid via a reshus harabim is liable because we say that something contained in the airspace of a domain is legally viewed as if it came to rest there (קלוטה כמי שהונחה דמיא). Therefore, according to R’ Akiva a space of four by four tefachim is not required. The Rabbis disagree.
- Branch of the tree accorded the status of the trunk
Rav Yosef says the author of the Mishna is Rebbe. The Gemara seeks to clarify which statement of Rebbe indicates he holds that an area of four by four is not needed for עקירה and הנחה.
The first source brought is a case one threw an object in a reshus harabim and it landed on a small protrusion four amos away. Rebbe says he is liable seemingly because he does not require a space of four by four tefachim to make someone liable.
This source is rejected as Abaye says this case is referring to a tree that was standing in a reshus hayachid and had its branches extend into reshus harabim. Rebbe holds that even though the branches are less than four tefachim, they are given the status of the trunk which is wider than four tefachim.
