Ат-Тавба 9:48

Adopting a religion may be done either with sincerity or with hypocrisy. Adopting religion sincerely means that a man makes religion the focus of his life, with a prime right over his life and property. Without sincerity, the adherent has a purely formal, external relation with religion, feeling no need to face all kinds of adversity for its sake. Admission of one’s mistakes amounts to acceptance of one’s being inferior to another: to do so is the most difficult thing for a man. That is why man always tries to somehow prove the correctness of his stand. Accordingly, those who accept Islam hypocritically are always in search of an opportunity to taunt sincere believers and to prove themselves as being in the right as compared to them. The hypocrites of Madinah were continuously engaged in such efforts. For example, when the Muslims were defeated in the battle of Uhud, the hypocrites who had remained behind in Madinah started circulating propaganda against the Prophet Muhammad to the effect that he had no experience of warfare or strategic affairs; that, spurred on by his own enthusiasm, he had taken the youngsters of the community to a dangerous place and had senselessly caused them to be killed. Among human beings there are very few people who are capable of deeply analysing problems and realising that the mere fact of a statement being cast in grammatically correct language does not in itself furnish proof of its being meaningfully correct. Many people are simple minded, and if something is presented to them in beautiful words, they are very soon affected by it. It is the presence of the hypocritical type of people in a Muslim group that is the cause of the weakening of that group. In their attempt to prove themselves right, such people frequently distort what they have to say so as give it a colour suited to their purpose. Influenced by such artifice, simple-minded people begin to be beset by doubts and uncertainty. In spite of the hypocrites’ efforts to oppose Islam, when the Muslims were victorious in the battle of Badr, ‘Abdullah ibn Ubayy and his companions are reported to have said, ‘This thing has got going now.’ The domination of Islam being obvious, they should have placed credence on the veracity of Islam, but even that fed their jealousy.