Houston picked up a 2012 first-round pick from the Lakers and sent Jordan Hill to L.A. in the deal. Jamie Wior, Fisher's representative, said in an e-mail that Fisher and the Rockets have negotiated a buyout of his contract, due to expire this season.
Wior said Fisher's "desire to win a sixth championship is what drives him and will continue to drive him as he moves forward."
The Rockets are thin at point guard with Kyle Lowry still recovering from a bacterial infection, and Jonny Flynn dealt to Portland in a separate trade last week. Goran Dragic has started the last six games for the Rockets.