Complete and unqualified obedience to the guardian is required on the part of Baha'is

'...It is not for individual believers to limit the sphere of the Guardian's authority, or to judge when they have to obey the Guardian and when they are free to reject his judgement. Such an attitude would evidently lead to confusion and to schism. The Guardian being the appointed interpreter of the Teachings, it is his responsibility to state what matters which, affecting the interests of the Faith, demand on the part of the believers complete and unqualified obedience to his instructions.'"

(From a letter written on behalf of the Universal House of Justice to an individual believer, August 22, 1977)

http://bahai-library.com/hornby_lights_guidance_2.html&chapter=2#n1050