Ep 14: Sincerity

Dear brothers and sisters, Almost all people agree that sincerity is a good attribute for any person; be they a head of a state or a citizen, a professor or a layman, or of wealth or poverty. Sincerity also has a special importance in trading and markets. Businesses strive to gain customers, through quality, trust and proposed sincere services and commitment. So, what is sincerity in Islam? What is its importance? And how does sincerity relates to intention?