Halakhah for Sukkah 64:30

From the laws of the commandment is that which they, may their memory be blessed, said (Menachot 27a) that these four species are one commandment and impede one another when he does not have [one of them]. But if he has [all of them] and he takes them one after another, he has fulfilled [the commandment]; as it is established for us that the lulav does not need a binding (Tosafot on Menachot 27a, s.v. lo shanu, in the name of Bahag). And we take one lulav, two sprigs of willow, and three sprigs of fit myrtle - meaning that its leaves are formed in threes on the nodes, as is explained in the Gemara (Sukkah 32b), and the verse hints to this when it calls it "braided." And the minimum measure of the length of a lulav is four handbreadths; and [of] a myrtle and a willow is three handbreadths, which is [the span of] ten fingers of the thumb. And the measure of the citron is that it cannot be less than a kabeitsah (like a large egg). And the law of the things that disqualify (Sukkah 29, 34) the lulav, the citron, the willow and the myrtle; the law (Bava Batra 137b) of partners that have purchased a citron in partnership - or brothers that acquired it from the contents of a house - such that if they acquired it with the intention to fulfill [the commandment] with it, each one of them fulfills [it] and they do not need the acquisition of the one from the other. So did our teachers - may God protect them - instruct us. And the laws of shaking (Sukkah 38a), such that the obligation is to extend [it] and to bring [it back], to raise [it] and to lower [it]. And the matter is to arouse the soul, that it remember at the time of joy that all belongs to God, may He be blessed - from above to below and the four directions, as all is included in this. And the rest of its details are elucidated in Tractate Sukkah.