However...
However, we might suppose that a nabi takes the message but it is not the time to deliver it, just as the Prophet of Islam received the message (revelation) on the 'Night of Power' “ We have indeed revealed this Message in the Night of Power .” but it took twenty-three years before he could fulfill the duty of conveying it to the people. In the Sura Ta Ha, verse 114, the Holy Qur’an addresses the prophet, saying: “... Be not in haste with the Qur’an before its revelation to thee is completed”.
Accordingly, nabi mursal (the deputed prophet),as the Commander of the Faithful puts it, is referred to as a Prophet who actually conveys his message to the people. What is the meaning of 'Kitabun munzal (a book sent down)? Does this sending down refer to a place? The fact is that to send down a book actually means to transform the book into letters and words (language) which humanity understands, i.e.
to adapt the high heavenly concepts and realities to the level of one's thoughts and understanding. In fact, God, the exalted, inspired the Prophet with the highly complicated facts and learning’s in the form of the most simple words and expressions which could be understood by all and which later came to be called the Qur’an, just as a teacher simplifies difficult matters and gives them to his students.
This comparison may, however, be wrong, for in any case there is a logical and ordinary connection between a teachers' mind and heart and those of his students, whereas there is a great gap between an ordinary man's heart and the divine lofty teachings.
The Commander of the Faithful asserts that in the absence of Prophets and heavenly books, there was either a 'binding argument' (an unfading proof by which people could convince the enemies) or a 'standing plea' (a clear and permanent way) on which people could depend. On the whole, every nation in the course of history has enjoyed one of the following: First a Prophet (like Moses, Jesus, Abraham, etc.).
According to a Tradition there has been 124,000 Prophets, the first of them being Adam and the last one being Muhammad, peace and the mercy of God be upon him and his descendants. Second, a heavenly Book, left behind by a Prophet. In this very Sermon (Sermon No. 1) he speaks of the Last Prophet, saying, „...
The Prophet left among you the same (the Book) which other Prophets lefts among their peoples...” By 'Book' he means a collection of written teachings and commandments, which all the Prophets possessed.