Yosef Karo

“ One normally does not do weekday labor until after leaving the synagogue. We say the song "Zchor Brit" when there is a circumcision on Hoshana Rabba, and we say it before "Ana hazon hin...." The early rabbis z"l wrote that the shadow of the moon on Hoshana Rabba evening holds a sign for what will happen to a person and their family in that year. There is one who writes not to be concerned with this so as not to upset one's fortune and also because many do not understand this matter fully. ”

“ There are those who say that the obligation is fulfilled this way.
סעיף ו
אין אדם יוצא ידי חובתו בערבה שבלולב אפי' הגביה אותה שני פעמים אחד לשם לולב ואחד לשם ערבה וי"א שיוצא בה:
664:7 There is one who says that one cannot take [the willow] with the lulav when fulfilling the obligation [of lulav] until after making the blessing and shaking it at the beginning, and if [the willow] is taken, the sin of adding things is committed. After the first shake, it can be taken with the lulav, and obviously during the circles. ”