All the seven days a man must make his succah [his] permanent [abode] and his house [his] temporary [abode]. If it rained, when is it permissible to leave? When the porridge becomes spoiled.  They illustrated this with a parable: To what is this comparable? To a slave who came to pour a cup for his master, and he poured the jug at his face.

A stolen lulav or a dry one is invalid.  [One] from an asherah or from a city that was led astray is invalid.  If its top was broken off, [or] its leaves severed, it is invalid.  If its leaves spread apart, it is valid. R’ Yehudah says: He should tie them together at the top.  The thorn palms of the Iron Mountain are valid.  A lulav that is three handbreadths long, [long] enough to wave, is valid.