Case: One person treats doctrinal correctness as a substitute for obeying religious obligations; another performs outward actions while ignoring the place of sound belief.
وَمَا آتَاكُمُ الرَّسُولُ فَخُذُوهُ وَمَا نَهَاكُمْ عَنْهُ فَانْتَهُوا
Accept what the Messenger gives you, and refrain from what he forbids.
Sound belief, obedience to commands and avoidance of prohibitions form a coherent path. Accountability for every deed, supplication for a good ending and adherence to truth are inseparable. Understanding leads to obedience, humility and responsible conduct.