Some critics of Islam allege that the Quran has not been perfectly preserved and that there are verses missing from the Quran, verses that have supposedly been ‘lost’.
One of the great things about the Quran and its reliability is in the way it was preserved by the Muslims. Unlike most books, the Quran doesn’t rely on textual transmission, in other words, even if every copy of the Quran were lost tomorrow the Quran would still exist.
The reason for this is because the Muslims have always memorized the Quran, and this started with the Prophet Muhammad (pbuh) and the early Muslims, and this continues all the way to the present day.
In fact it’s very well known for Muslims to make Quranic memorization competitions, and you will find children who have memorized the entire Quran. This is not only limited to children, you will find that even blind people can read the entire Quran, because they don’t need a text on paper to read it from.
In essence, the oral transmission of the Quran is its greatest asset and greatest protection, because let’s say something does get lost in the text, the oral transmission will ensure the verse does not actually get lost and it remains preserved.
So in that way, it’s virtually impossible for any verse in the Quran to simply go ‘missing’ or to get ‘lost’, because the Muslims who have memorized the entire Quran would realize this, and they would always be reciting the Quran, hence nothing can ever get lost.
The Quran has been memorized by millions of Muslims, so it is impossible for a verse to go missing, because everybody will notice it.
Similarly in the early days of Islam, thousands of Muslims memorized the Quran, so let’s say someone had some ulterior motives and they wanted to tamper with the Quran, the rest of the community would automatically recognize this because they have all memorized the Quran.
So not only does the Quran remain preserved and protected through oral memorization, the oral memorization also protects the Quran from anyone who has bad intentions of changing the Quran to suit their own purposes or agenda.