(3) Constructiveness:

The Prophets harness all the forces at their disposal and set them in motion for constructive purposes, that is to reform both the individual and society or in other words, to ensure human welfare. It is impossible that their activities should corrupt any individual or cause harm to society at large. Therefore if the preaching's of a claimant of Prophethood lead to corruption or indecency, paralyze human power or cause decline of society, that is clear proof of his being an imposter. Dr Iqbal in this connection has very aptly said:
"Another way of judging the value of a Prophet's religious experience would be to examine the type of manhood that he has created, and the cultural world that has sprung out of the spirit of his message". (The Reconstruction of Religious thought in Islam, p. 124)

(4) Struggle and Conflict:

His struggle against idolatry, myths, ignorance, false ideas and tyranny is another sign of the truth of a Prophet. It is impossible that in the message of a person selected by Allah to be His Prophet there should be anything smacking of idolatry, supporting tyranny and injustice or tolerating polytheism, ignorance, myths, cruelty or despotism.

Monotheism, reason and justice are some of the principles which have been preached by all the Prophets. The message of only those who preach these principles is worth consideration and they alone can be asked to produce a proof or a miracle. If the message preached by a person contains an element indisputably unreasonable or contrary to the principles of monotheism and justice, or supporting tyranny, then it is not worth consideration at all. In such a case it is absolutely unnecessary to ask him to produce a proof of his claim.

Similar is the case of a pretender, who commits a sin, makes a blunder or is unable to guide people because of a physical defect or some loathsome disease like leprosy, or because his teachings do not have constructive effect on human life. Even if such a pretender works miracles, it is absurd to follow him.

(5) Human Aspect:

The Prophets, in spite of having many supernatural qualities, such as infallibility, the power of working miracles, the incomparable power of guidance, and reconstruction and the power of making unique struggle against polytheism, myths and tyranny, are after all human beings. They, like all other men eat, sleep, walk, beget and eventually die. They are subject to all essential human needs. They are obligated to perform the same religious duties as others.

They like others are subject to all the religious laws conveyed through them. Sometimes they have even some additional duties. The pre-dawn prayers which are supererogatory for others were obligatory for the Holy Prophet. The Prophets never considered themselves to be exempted from any religious injunctions.

They, more than others had fear of Allah and they more than others worshipped Him. They offered prayers; kept fast; took part in the holy war; paid zakat and showed kindness to others. The Prophets worked hard for their own weal as well as the weal for the others. They were never a burden on anyone else in their life.
The revelation and the features connected with it constitute the only difference between the Prophets and others. The fact that they receive revelation does not exclude them from the category of human being. On the other hand it makes them a model of the perfect man. That is the reason why they are so fit to guide others.

(6) Prophets Having a Divine Legal Code:

Generally speaking, the Prophets can be divided into two categories:

The first category, which is in minority, is composed of those Prophets to whom independent codes of law were revealed, and who were ordered to guide the people on the basis of these codes. The Holy Qur'an has termed them the 'high-minded' Prophets. We do not know their number exactly. The Holy Qur'an expressly says that it has recounted the stories of only a few of the Prophets.

Had it recounted the stories of all of them or at least had stated that it had recounted the stories of all those who were important among them, we might have known the number of the high-minded Prophets. Anyhow, we know that Nuh, Ibrahim, Musa, 'Isa and Muhammad, the last Prophet (Peace be on them) are included among them. Independent codes of law were revealed to all 'high-minded' Prophets, who were asked to train their followers on the basis of them.

The second category of the Prophets consists of those who had not their own independent codes of law but were asked to preach and propagate the already existing Divine laws. Most of the Prophets belong to this category which includes such names as those of Hud, Salih, Lut, Ishaq, Yaqub, Yusuf, Yushu, Shuayb, Harun, Zachariyyah and Yahya (may peace be upon them).

Source: najaf