In answer to the question asked of Imam Sadiq...

In answer to the question asked of Imam Sadiq, `Why is the Qur'an always new and fascinating no matter how many times it is read or taught?', he said, `God has not sent the Qur'an for a special time or for a particular group.

The Qur'an is for all and forever, so till doomsday it will be new and enchanting at all times and to all groups of people'." [^2] Another Testimony To Islam’s Universality In 6 A.H., the Holy Prophet of Islam dispatched several representatives to rulers and kings of different parts of the world, each with a letter in which he invited them to become Muslims and submit to God's faith. All these letters had the same purport, that is, the invitation to monotheism and Islamic fraternity.

Since the Holy Prophet's mission was divine, in obedience to God's command, consistent with human nature, and meant to lead people to God's path, it highly impressed such just, truth­seeking people as Najashi, Muquqs, and others, so they submitted to Islam. [^3] Research made on the collection of the Prophet's letters indicates that he sent 62 letters to kings, chiefs of tribes and clans, and heads of convents. The texts of 29 of these letters are available.

[^4] Now we will take a glance at parts of the letters of the Holy Prophet of Islam. A Letter To Khusrow, The King Of Iran In the Name of God the Merciful, the Compassionate From Muhammad, God's Messenger, to Khusrow, the King of Persia. Greetings to the followers of the right path, to those obedient to God and His Prophet, to those who bear witness to God's Oneness, who worship the One God, and who bear witness to the prophecy of God's servant, Muhammad.

Truly I call upon you to obey God's command and convert to Islam. I am God's Messenger to all the people so that living hearts will be awakened and illuminated and so that infidels will have no excuses. Submit to Islam so you will be safe and immune, and if you disobey me and turn down my invitation, you will be blamed for the sins of the magi.' [^5] A Letter To Harqal, The King Of Rome In the Name of God the Merciful, the Compassionate . ..I call upon you to submit to Islam.

If you become a Muslim, you will share the Muslims' gains and their losses, and if you do not want to become a Muslim yourself, then let your people freely convert to Islam or pay the poll tax, paid in lieu of conversion to Islam, and do not restrict them in choosing their faith." [^6] The letters of the Holy Prophet of Islam were not exclusively written to kings.