Could Nebuchadnezzar's magicians recover his forgotten dream?
No, they could not. Nebuchadnezzar had dreamed and lost the dream, and he tried to get his magicians to bring it back, but they were unable to do so. Daniel, a young Jewish captive, was later brought to preeminence by interpreting that dream.
Les explains that Nebuchadnezzar had dreamed a dream and then lost it. He tried to get his magicians to bring the dream back, but they could not. The context notes that Daniel, a young Jew taken captive from Jerusalem and Judea to Babylon, was trained for service in the king's kingdom. Daniel was brought to preeminence by interpreting this dream that the king had dreamed and lost. So the magicians failed, but Daniel later interpreted it.