Obey Allah, and obey the messenger, and beware (of evil): if ye do turn back, know ye that it is Our messenger's duty to proclaim (the message) in the clearest manner. [5:92]
Say: "obey Allah and His messenger.: But if they turn back, Allah loveth not those who reject Faith. [3:32]
And obey Allah and the messenger. that ye may obtain mercy. [3:132]
O ye who believe! obey Allah and His messenger, and turn not away from him when ye hear (him speak). [8:20]
Obeying the Messenger (SAW) = following his sunnah.