Daf Yomi - Sukkah 37 - Hoshanos Clip for $3.75

The Gemora rules that the lulav should be held in the right hand and the esrog in the left. It was the custom and still is that during hallel and hoshanos, we hold all of the four species in our right hand. The Taz 651:14 states that this is not a concern and one fulfills his mitzvah in this manner. It is assumed that this was the always the method of holding the lulav and esrog.