Reference: http://www.alfawzan.af.org.sa/node/16902
Question: To what extent is obedience to one’s parents [legislated]? And should it be at all times?
Response: Obedience to parents is in other than that which leads to sin; [so] if they command you to do something which entails sin, then there is no obedience to any of the creation whilst committing a sin against [the law of] Allaah, [as He (‘Azza wa Jall) says]:
{But if they endeavor to make you associate with Me that of which you have no knowledge, do not obey them.}, soorah al-’Ankaboot, aayah 8