Allah says:� And this Qur'an is not such as could ever be produced by other than Allah, rather, it is the confirmation of that which was before it, (i.e., the Torah and the Gospel, etc.) and a full explanation of the Book which is no doubt, from the Rubb of the worlds. Or do they say: He has invented it? Say: Then produce a surah like it, and summon whoever you can [to help you] apart from Allah, if you are truthful.�
There is no nation that had ever cared about, revered, and preserved its Divine Scripture as the Muslim Ummah (nation) has cared about, revered and preserved the Qur'an. Unlike the other Divine Scriptures, the Qur'an is not kept in the hands of a particular group or elite of Muslims, and for this reason it is not subject to suspicion that it might have been tampered with or altered. Rather, it has always been within the reach of all Muslims.
The Prophet, peace be upon him, commanded The Muslims to recite Qur'anic verses in their prayers. Allah commands the Muslims to refer all their disputes to the Qur'an for final judgment. The Qur'an was compiled in its final form at a time when the first Muslims to commit it to memory were still alive. Allah has promised to preserve it, and it will be preserved until the Day of Resurrection.
The Muslims today read and recite the Qur'anic texts exactly as they were read and recited during the lifetime of the Prophet Muhammad, peace be upon him, and his Companions. Not a single letter has been added to the Qur'an or deleted from it. After having examined the Qur'an, Dr. Maurice Bucaille ascertains: "Thanks to its undisputed authenticity, the text of the Qur'an holds a unique place among the books of revelation."
Dr. Maurice Bucaille is a surgeon who has taken great interest in the scientific aspects of the Qur'an. He learned Arabic and managed to study the Qur'an in its original text. He was amazed with its precise scientific data. As a result of his study, Dr. Bucaille embraced Islam.