Very quickly review גמרא דף מג: “ערבה שבעה כיצד (two dots) until איתיביה אביי (middle of the Amud)
Write or chart each question and answer of the Gemara.
Learn ריטב”א on the entire Gemara who addresses many of the questions below
https://www.sefaria.org/Ritva_on_Sukkah.43b.1?lang=bi
The Gemara says Aravah is permitted to be taken on Shabbos when it coincides with Hoshana Rabbah because שלוחי בית דין מייתי לה
List
1. The argument between the ריטב”א “ומהדרינן and מהרש”א whether this a retraction from the first reason of לפרסום שהיא מן התורה
2. The argument between תוספת מג: “שלוחי and the ריטב”א as to why the Gemara assumes that post Churban Beis Hamikdash there should be no concern of גזירה דרבה when taking the Aravah on Hoshana Rabbah when it coincides Shabbos.
3. The explanation from Rashi and an alternate explanation from the ריטב”א “אי הכי כל of “אתי לפקפוקי בלולב”
Questions:
According to the opinion that taking Aravah post churban is just a minhag and not even a mitzvah from the Rabanan why would one have permission to handle the Aravos on Shabbos as they are muktzah?
See ריטב”א “ופרכינן אי הכי for an answer.
The Gemara answers “Because we are not experts to calculate the precise day of Yom Tov that’s why we can’t take aravos on Hoshana Rabbah that coincides with Shabbos.”
What’s the major concern even if hoshana Rabbah is really the sixth day of Sukkos there is no issue with taking the Aravah as the Gemara said in essence one should be permitted to take Aravah every day of Sukkos to publicize that it’s a mitzvah from the Torah just we don’t to prevent people from treating the mitzvah of Lulav lightly?
Learn תוספת “לא איקלע