That is not so, here read this article regarding the Sana's manuscript its the earliest Koran and differs to Uthman's version ....
http://www.guardian.co.uk/education/2000/aug/08/highereducation.theguardian
It is an interesting read. Prophet Muhammed used to recite revelations to his companions who not only used to memorize them by heart but also wrote them on tree wood, stone tablets etc. The arabs at that time had very strong oral tradition as literacy wasn't widespread. So during the time of Prophet Muhammed many of his companions memorised by heart his whole revelations while others wrote it down.
All the revelations that came to Prophet Muhammed didn't come in one single day. It was a gradual process and took 23 years for the whole process to complete. Infact there were early copies of Quran produced during Prophet Muhammed time while the whole process was still ongoing; otherwise the message couldn't have spread further.
Prophet Muhammed passed away in 632AD. Then it was khalif Abubakr (one of the top and closest companion) who took charge of the leadership of muslim community (632 -634AD)(although with some disputes to the successer of prophet) who actually started the whole process of compiling Quran once and for all containing everything within. He tasked Zaid ibn Thabit to collect all the verses of Quran from people who had with them written texts on stones, palm leaves etc aswell as oral recitations.
All the texts Zaid collected had to be verified orally by the companions who learnt everything by heart Prophet Muhammed's recited revelations up until his death. So in the end Quran was produced in final form and this was the only 'Complete Original Manuscript' ever which was passed onto 2nd Khalif Umar ibn Khattab who's reign was (634-644AD) who then passed it onto his daughter Hafsa who also happes to be Prophet Muhammed's wife.
Now we come into 3rd Khalif Uthman(Usman) Ibn Affan era (644-656AD).
During his time Islam spread further and people started having disputes with regard to dialect of Quran (not the wording of Quran) as the Quran was still available in stones, tree wood etc. What Khalif Uthman did was to request the original Quranic Manuscript (compiled during abubakr reign) from Hafsa and had that quran rewritten in a standard text without any changing in word.
He sent the original back to Hafsa. He could have told Hafsa to burn the original manuscript but he didn't. What He most probably did was to rewrite the original Quranic manuscript in Qurayshi dialect as this was the dialect of prophet Muhammed and circuled these copies far and wide. These copies became known as 'Uthman Quran'; and the rest of bits and bobs on trees , stones, leaves etc were burnt.
About Samarkand and Topkapi scripts I do apologise that I was slight ignorant as I always thought that the 'Uthman Quran' was in Turkey in complete form but that doesn't seem to be the case and Gaidin 109 is correct in saying that these are incomplete copies of quran written in kufic script/dialect. If these are claimed to be written after 150 years then they aren't 'Uthman Quran'.
As for Sana script which is still incomplete it seems to be dated 710AD onwards. So it still can't be the 'Usman Quran'. Also puin only found minor textual variations (I am assuming he compared sana to samarkand and topkapi), different ordering of chapters and different orthography styling aswell as the script written without any diacritical marks, vowel symbols or any guide to how it should be read. Which leads me to the conclusion that the original wording of the Quran still hasn't been tempered with. It's not like we suddenly discover an ancient Quran which claims that Muhammed is God as opposed to being a prophet of One God as we are taught in islam.
The problem is that arabic language though being one whole language has many different regional variations which result in arabic people speaking different dialects depending on where they are from in the middle east. So though they may be pronouncing same sentence they could end up with slight different interpretaion but not the wording.
Me being a non-arab muslim would find it very difficult to read Quran in arabic without any diacritical marks as I wouldn't know how to pronounce those words with out the help of an expert arabic teacher well versed in different dialects and arabic language technicalities. As for hajjaj adding those diacritics that would be to help people like me to read Quran and he wouldn't have done so with out the backing of religious scholars well versed in this issue. But again he didn't change the wording of Quran.
Now I am no linguistic expert but an analogy could be drawn here by using a simple english language sentence:
'He is going to park' and 'He ls golng to park' (I had to use l
)
Now you can immediately see the difference between two sentences though the wording is the same. The first one immediately makes sense and we can easily read but second one without the diacritic on i is confusing. This results in many different interpretations unless someone is specialist in english language.
As for puin claim that there is pre islamic text that has crept in Quran; well then there is also mention of jesus, moses, abraham, jacob, ishmael, isaaq, pharoah etc who are all pre islamic individuals some dating back 2000-4000 years as God has knowledge of past, present and future and nothing is hidden from Him. He could easily have told prophet Muhammed the past events which is the case with adam, pharoah, moses, etc.
Personally I wouldn't take Puin opinions as absolute truth about Quran language compared to a native arabic linguistic expert.In the end I can only draw conclusion that sana, topkapi, samarkand, and ma'il are incomplete copies of Quran with different diacritics but same wording though they display different chapters which may be positioned differently but not altered majorly.
This does lead to the question as to where did the 'Original Quran Manuscript' compiled by Abubakr and kept by Hafsa go. Also where did the 'Uthman Quran' go and which Quran has been used to scribe modern qurans. I personally guess it is probably the one used during Hajjaj reign which has been scribed through the generations but I still need to ask an Imam.
