Faith's core: Heartfelt affirmation of the decisively established divine message delivered by the Messenger ﷺ.
Profession's role: Public expression and the basis of outward rulings.
The demand of deeds: Obedience, fulfillment of duties, avoidance of sin, and visible consequences of faith.
These distinctions avoid two extremes: treating spoken words alone as the complete inner reality in every case, and treating every lapse in conduct as the total disappearance of belief.
The obligations themselves remain fully binding. Separating deeds from the core definition in a particular theological formulation does not grant permission to neglect them; it distinguishes the existence of assent from its obedient fulfillment.