It is well-known that man accepts guidance through his...

It is well-known that man accepts guidance through his reason and not through his body and limbs. If he had incomplete reason, it is impossible for him to acquire knowledge and understanding. Shaykh Mulla Sadr al-Deen, may Allah have mercy on him, has established a proof of the incidence of guidance and [1] Shaykh Mullah Sadra's name is Muhammed b. Ibrahim al-Shirazi. He was wise, famous and had knowledge of Allah. He was the most knowledgeable of the people of his time in wisdom.

The author of the book al-Salafa has said: "He (Mullah Sadra) mastered all arts of wisdom." Mullah Sadra has the four books. He explained the book Usool al-Kafi and some Qur'anic verses. He died in Basrah in the year 1050 A. H. This has been mentioned in the book al-Kuna wa al-Alqab. [1] Qur'an, Surat al-Zumer, verses 17-18. of its Doer, Who is Allah, the Exalted. He has elaborated on that.

Imam Musa, peace be on him, has said: "O Hisham, surely Allah, the Blessed and Exalted, completed for men the proofs through reason, and helped the prophets with the explanation, and guided them to His Lordship through demonstrations, when He has said: And your Lord is one God! There is no god but He; He is the Beneficent, the Merciful.

Most surely in the creation of the heavens and the earth and the alternation of the night and the day, and the ships that run in the sea with that which profits men, and the water that Allah sends down from the cloud, then gives life with it to the earth after its death and spreads in it all (kinds of) animals, and the changing of the winds and the clouds made subservient between the haven and the earth, there are signs for a people who understand."[1] In his tradition, the Imam has mentioned that Allah completed the souls of His prophets through virtuous reason, that they might be proofs over His servants and guides for them to the way of good and salvation.

If Allah had not given them sound reason, they would not have been appropriate for leading and guiding the nations, for the incomplete one cannot complete other than him. Indeed Allah helped his prophets through explaining the truth and the truthful verses.

He guided them to His Lordship and showed them the way to know Him and to profess His Unity through decisive proofs bearing witness to His Existence and indicating His Oneness; the verses He has given as proofs are from among the traces of his creation.