Does this mean Karaite don believe in Reward and Punishment or the Final Resurrection of the Dead?
These doctrines are attributed to the Sadducees by their enemies and it is difficult to reconstruct the precise Sadducee view on these subjects. All Karaites believe in Reward and Punishment and most Karaites believe in the Final Resurrection as described in Daniel 12,2: “And many of them that sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt.