The Muslim "Faith" is what we have defined in the foregoing discussion as ‘Knowledge and belief’. The Arabic word Iman, which we have rendered in English as faith, literally means ‘to know’, ‘to believe’, and ‘to be convinced beyond the least shadow of doubt’. Faith, thus, is firm belief arising out of knowledge and conviction. And the man who knows and reposes unshakable belief in the unity of God, in His Attributes, in His Law and the Revealed Guidance, and in the Divine code of Reward and punishment is called Mukmin (faithful). This faith invariably leads man to a life of obedience and submission to the will of God. And one who lives this life of submission is known as Muslim.
This should clearly bring home the fact that without faith (Iman) no man can be a true Muslim. It is the indispensable essential; rather, the very starting point, without which no beginning can be made. The relation of Islam to Iman is the same as of a tree to its seed. As a tree cannot sprout forth without its seed, in the same way it is not possible for a man, who has no belief to start with, to become a ‘Muslim’. On the other hand, just as it can happen that, in spite of sowing the seed, the tree may not grow for a multiple of reasons, or if it sprouts, its growth may be impaired or retarded, in the same way, a man may have faith, but due to a number of weaknesses, he may not become a true and staunch Muslim. Thus we find that faith is the starting point and leads man to the life of submission to God, and that a man cannot become a Muslim without faith. On the contrary, it is possible that a man may have faith but, because of the weakness of his will power, poor training, or bad company, he may not be living the life of a true Muslim. As such, from the viewpoint of Islam and Iman, all men may be classified into four categories:
- Those who have firm faith-a faith that makes them absolutely and whole-heartedly submit to God. They follow the way of God and devote themselves heart and soul to seek His pleasure by doing all that He likes and by avoiding all that He dislikes. In their devotion they are even more fervent that is the common man in pursuit of wealth and glory. Such men are true Muslim.
- Those who do have faith, who believe in God, His Law and the Day of Judgment, but whose faith is not deep and strong enough to make them totally submit to God. They are far below the rank of true Muslims deserve punishment for their defaults and misdeeds, but they are still a Muslim. They are defaulters and wrongdoers but not rebels. They acknowledge the Sovereign and His Law and, although they are violating the Law, they have not revolted against the Sovereign. They admit its supremacy and their own guilt. Thus they are guilty and deserve punishment, but Muslims they remain.
- Those who do not possess faith at all. These people refuse to acknowledge the sovereignty of God and are rebels. Even if their conduct is not bad and even if they are not spreading corruption and violence, they remain rebels and their apparent good deeds are of little value. Such men are like the outlaws. And as, even if any action of an outlaws is in consonance with the law of the land, he does not become a loyal and obedient citizen, in the same way the apparent good of those who revolt against God cannot compensate for the gravity of the real wrong, revolt, and disobedience.
The above classification of mankind clearly shows that the real success and salvation of man depends on Iman (faith). The life of obedience (Islam) takes its birth from the seed of Iman. This Islam of a person may be flawless or defective. But without Iman there can be no Islam. Where there is no Imaan there is no Islam.
Where there is no Islam there is Kufr. Its form and nature may be different, but in any way it would be Kufr and nothing but Kufr.