119 Sukkah 4/1-4

(1) The [shaking of the] lulav and the [ritual of the] willow [branches were each done, at times] on six [days of the festival], and [at times] on seven. The [recitation of the] Hallel, and the simchah [the obligation to bring Shelamim sacrifices to the Temple as part of the rejoicing on the three pilgrimage festivals] were each done on eight [days]. The [dwelling in the] sukkah, and the water libations [were each done] on seven [days]. And the flute [was played, at times] on five, and [at times] on six.

(2) How is the [shaking of the] lulav [done] on seven [days]? If the first holy day of the festival falls on Shabbat, the [shaking of the] lulav [is done] on seven [days]; and [if the first holy day of the festival falls on] any of the other days [of the week, the shaking of the lulav is done] on six.

(3) How is [the ritual of] the willow [branches done] on seven? If the seventh day of the willow [ritual] falls on Shabbat, [the ritual of] the willow [branches is done] on seven [days]; and [if it falls on] any of the other days [of the week, it is done] on six.

(4) How is the mitzvah to take the lulav [done] when the first holy day of the festival falls on Shabbat? They would walk their lulavim to the Temple Mount, and the officers would receive [the lulavim] from them and arrange them on top of the colonnade, and the elders would place theirs in the chamber. And they would instruct them [the people] to say, "Anyone whom my lulav comes into his possession, it is thereby his as a gift." The following day they would arise and come, and the officers would throw them [the lulavim] before them, and they would grab them, and people would hurt their fellows [in the scramble]. And when the Beit Din saw that they would come to dangerous circumstances, they established that each person should perform [the mitzvah of] the taking [of the lulav] in his own house.