It is He Who has sent His Messenger with Guidance and the Religion of Truth to make it prevail over all religion, and God is sufficient as witness.1 * Say: O men! I am sent unto you all as the Messenger of God, to Whom belongs the dominion of the heavens and the earth, there is no God but He; it is He Who gives life and death.2
This is the Window of the Prophet Muhammad (Peace and blessings be upon him), the Sun of the skies of messengership, indeed, the Sun of Suns. Since it has been proved in the Thirty-First Word, the Treatise on the Ascension, in the Nineteenth Word, the Treatise on the prophethood of Muhammad (Peace and blessings be upon him), and in Nineteen Signs of the Nineteenth Letter, how luminous and evident is this most brilliant, large, and light-giving window, we shall think of those two Words, and that Letter and its Nineteenth Sign, and refer the word to them. For now we just say this:
Muhammad (Peace and blessings be upon him), the living, articulate proof of Divine unity, demonstrated and proclaimed Divine unity throughout his life with the two wings of messengership and sainthood, that is, with a strength that comprised the consensus of all the prophets who had preceded him and the unanimity of the saints and purified scholars who came after him. He opened up a window onto knowledge of God as broad and brilliant and luminous as the World of Islam. Millions of purified and veracious scholars like Imam Ghazzali, Imam-i Rabbani, Muhyiddin al-’Arabi, and ‘Abd al-Qadir Geylani look through that Window, and show it also to others. Is there any veil that can obscure a Window such as this? Can the person who accusingly does not look through this Window be said to possess reason? Come on, you say!