It is false that Claudius tells Rosencrantz and Guildenstern that they must tell the players not to obey any of Hamlet's orders - if you are referring to Shakespeare's "Hamlet."
This never happened in the play. Claudius sent these two men to find and kill Hamlet, however, the tide has turned, and in the end, Hamlet managed to have both of them killed. They were his childhood friends, yet they betrayed him on behalf of his father's murderer.
