Vayikra 23:39-41 Orthodox Jewish Bible (OJB)
39 Also in the fifteenth day of the seventh month, when ye have gathered in the crop of HaAretz, ye shall keep a Chag (Feast) unto Hashem shivat yamim; on the first day shall be a Shabbaton, and on the eighth day shall be a Shabbaton.
40 And ye shall take you on the Yom HaRishon the fruit of the citron tree, branches of temarim (date palms), and twigs of plaited trees, and willows of the brook; and ye shall rejoice before Hashem Eloheichem shivat yamim.
41 And ye shall keep it a Chag (Feast) unto Hashem shivat yamim in the shanah. It shall be a chukkat olam in your dorot; ye shall celebrate it in the seventh month.