I thought some goats at parts of it since some of it was written on palm leaves. And that they ate it during Mohammed’s lifetime so there are parts that never made it into the Koran. I might be wrong, but it says something about that in their hadith. (I cannot remember which one(s).)
I think it is all a bunch of ballyhoo that they tell their followers so as to make them think it is all what they say it is and to not question it.
Well some verses from the Koran they only had one source for, so really they have no textual comparison to make compared to the Dead Sea Scrolls or the tens of thousands of manuscripts of the NT.
Narrated Zaid bin Thabit:
Abu Bakr sent for me and said, “You used to write the Divine Revelations for Allah’s Apostle : So you should search for (the Qur’an and collect) it.” I started searching for the Qur’an till I found the last two Verses of Surat At-Tauba with Abi Khuzaima Al-Ansari and I could not find these Verses with anybody other than him. (They were): “Verily there has come unto you an Apostle (Muhammad) from amongst yourselves. It grieves him that you should receive any injury or difficulty …” (S. 9:128-129) [Sahih Bukhari Volume 6, Book 61, Number 511]
On top of this, Uthman, one of the early leaders of Islam, had most of the manuscripts of the Koran burned.
So 'Uthman sent a message to Hafsa saying, “Send us the manuscripts of the Qur’an so that we may compile the Qur’anic materials in perfect copies and return the manuscripts to you.” Hafsa sent it to 'Uthman. 'Uthman then ordered Zaid bin Thabit, 'Abdullah bin AzZubair, Said bin Al-As and 'AbdurRahman bin Harith bin Hisham to rewrite the manuscripts in perfect copies. 'Uthman said to the three Quraishi men, “In case you disagree with Zaid bin Thabit on any point in the Qur’an, then write it in the dialect of Quraish, the Qur’an was revealed in their tongue.” They did so, and when they had written many copies, 'Uthman returned the original manuscripts to Hafsa. 'Uthman sent to every Muslim province one copy of what they had copied,
and ordered that all the other Qur’anic materials, whether written in fragmentary manuscripts or whole copies, be burnt… [Sahih al-Bukhari Volume 6, Book 61, Number 510; emphasis mine]
And, as I said, there are textual variants sourced to some of Mohammad’s companions:
In some Qira’ahs, like that of Ubayy ibn Ka’ab, occur also the words “and he is a father of them”, which imply his spiritual relationship and connection with the words “and his wives are their mothers”. [Abdullah Yusuf Ali, *The Meaning of the Holy Quran, 11th edition, Note #3674]
As well as some grammatical variants between the texts:
Notice that in the usual Arabic texts (that is, according to the Qira’ah of Hafs) the word qala is here and in 21:112 below, as well as in 23:112, spelt differently from the usual spelling of the word in other places (eg., in 20:125-126). Qul is the reading of the Basrah Qira’ah, meaning, “Say thou” in the imperative. [Abdullah Yusuf Ali, *The Meaning of the Holy Quran, 11th edition, Note #2666]
The Hafs reading is “Qala”, “He will say”. This follows the Kufah Qira’ah. The Basrah Qira’ah reads “Qul”, “Say” (in the imperative). [Abdullah Yusuf Ali,* The Meaning of the Holy Quran, 11th edition, Note #2948]
Now here’s the thing: I am willing, as a Christian, to be consistent. I acknowledge that there are textual variants in the Bible, but that most of these are by and large inconsequential and mostly grammatical (Lee Strobel’s book
The Case for the Real Jesus has a great section on this). I am therefore willing to say that minor sentence changes or grammatical variants within the Koran are no big deal as well - again, because I am willing to be consistent and apply the same standards to the Koran as I do the Bible. The problem is that you don’t often see this from the Muslim side - they either ignore the variants in the Koran (as this website does) or they play double standards between the Bible and the Koran. What you get therefore is an argument of “The Koran we have today is the same Koran they had back then!”, which rests on very weak ground.