“Indeed, it is We who sent down the Qur’an and indeed, We will be its Guardian.”442

The preservation and incorruptibility of the Qur’an were boldly promised therein. One should wonder how a book primarily committed to memory and documented on bones, palm leaves, and leather scraps over the span of twenty-three years could survive. People would learn some Qur’an from the Prophet صلى الله عليه وسلم or his Companions, then travel back to their homelands and teach it to their families, friends, and students, who would then relay it to others. These separate oral transmissions continued independently for centuries, across the earth. Despite that, all 1.8 billion Muslims today somehow still recite the Qur’an exactly as it was taught to the Prophet’s صلى الله عليه وسلم Companions and written in the original Uthmanic codex. Even competing denominations (i.e., Sunni, Shiite, Kharijite) recite the same Qur’an. And yet, a millennium and a half later, we do not find contradictions in meaning between all these oral traditions worldwide. As for the established variant readings of some verses, they only add to the beauty of the text’s multi-layered meanings.443 To accept that such consistency could be mere coincidence, or that global collusion on a spoken version of the Qur’an has taken place, or that a conspiracy of this magnitude was even logistically possible, is irrational. Italian Orientalist Laura Vaglieri (d. 1989) of Naples Eastern University attests in her book, An Interpretation of Islam, “We have still another proof of the divine origin of the Quran in the fact that its text has remained pure and unaltered through the centuries from the day of its delivery until today.”444

It is also remarkable that the Qur’an in written form today perfectly matches the original manuscripts of the Qur’an compiled by the Prophet’s Companions. Even the few scribal differences reported from some of the Companions were reconciled during the reign of Islam’s first four caliphs, accepted by all the Companions, and conformity with one copy won their consensus. To fully appreciate this, impartial consideration should be given to the fact that while spell-check and similar features afforded by modern technology have mitigated many lapses in our writing today, our emails and text messages still fall prey to spelling and grammatical errors. Then consider the premodern scribal tradition, rewinding to a world before the printing press and before mass literacy. It should not surprise us to have hundreds of thousands of misaligned manuscripts for the religious texts of the past—irrespective of whether this was done innocently or maliciously, and irrespective of whether originals of that text were available for cross-verification. But with the Qur’an, this was averted due to that Uthmanic codex being preserved, in addition to its mass-memorization, its strong poetic rhythm that facilitates memorization, and its daily usage in a Muslim’s life, which together constitute a genius reinforcement mechanism unrivaled in history.445

Some people claim that the Qur’an was initially codified by a central authority, and this happened early enough to make preempting the spread of non-conforming manuscripts possible.

They contend that the compilation of Abū Bakr  and standardization of ʿUthmān  could have purged whatever early manuscripts they arbitrarily deemed undesirable. Such a suspicion is not unexpected, given that the Bible was kept secret by government-enforced dictates and remained inaccessible to the laity until 1,500 years after Jesus Christ , following the Protestant Reformation. However, the Qur’an’s unique decentralized dissemination made it impossible for anyone to later modify its content, unlike the “authorized revisions” of the Bible that continue being issued until the present day.

Furthermore, since this transmission of the Qur’an does not solely hinge on the written records, this allows for measuring the written against the oral to ensure that the documentation and dissemination processes were scrupulous. Hence, its preservation in the hearts of those who memorized it that is what has immortalized it, as Allah says, “Rather, the Qur’an is distinct verses [preserved] within the chests of those endowed with [sacred] knowledge, and none rejects our verses but the wrongdoers.”446

Orientalist Alford T. Welch writes, For Muslims, the Ḳurʾān is much more than scripture or sacred literature in the usual Western sense. Its primary significance for the vast majority through the centuries has been in its oral form, the form in which it first appeared, as the “recitation” (kurʾān) chanted by Muhammad to his followers over a period of about twenty years… The revelations were memorized by some of Muhammad’s followers during his lifetime, and the oral tradition that was thus established has had a continuous history ever since, in some ways independent of, and superior to, the written Ḳurʾān… Through the centuries the oral tradition of the entire Ḳurʾān has been maintained by the professional reciters, while all Muslims memorise parts of the Ḳurʾān for use in the daily prayers. Until recently, the significance of the recited Ḳurʾān has seldom been fully appreciated in the West.447