Out of them those well-known gentlemen...
Out of them those well-known gentlemen, who with regard to the copying of the Holy Quran doing arrangement which was many times more compared to others. Among them the name of Imam Ali Ibn Abi Talib (a.s.) tops the list. Thus the copies of the Holy Quran, which were written by young people, were present among the Muslims. And they used to come to them day and night with respect to recitation and getting benefit of the Holy Quran.
Other than that, many of the Muslims had remembered by heart the Verses and Surahs of the Holy Quran. They were very careful in memorizing the Holy Quran. And they made efforts that not a single word of that heavenly book be forgotten. Those gentlemen were called Qari (reciter of Holy Quran) and people with regard to the recitation of Quran, used to turn always towards them and get the benefit.
Muslims were so strictly guarding and taking care and were vigilant against the tempering of Quran that in the time of Caliphate of Abu Bakr many reciters of Holy Quran were killed in the battle of Yamama, so Muslims decided to pay more attention towards guarding and protecting the Holy Quran. And to fulfill this purpose they collected all the copies of the Holy Quran at a place and they ended all the possibilities of increase or decrease in it.
Once again more vigorous attention was paid towards guarding those copies of the Holy Quran. In the Caliphate of Uthman also four editions were prepared from the original copies and were sent to all the Islamic provinces so that they all make the copies which they held before according to the one sent to them. And while reciting the Holy Quran they follow them.
The gentlemen who were reciters of Holy Quran and other Muslims paid attention towards guarding the Holy Quran to such an extent that one day between Ubayy bin Kab and the Caliph of that period Uthman a difference arose regarding the Verse No. 34 of Surah Taubah. And (as for) those who hoard up gold and silver and do not spend it in Allahs way Uthman bin Affan said that in the revelation by Allah the word allazina (those who) is there (i.e.
without Waw; coordinating conjunction) and this letter should be removed from the editions of the Holy Quran. Whereas Ubayys stand was that we have heard this Verse from the Prophet (a.s.) in this way only. When the discussion prolonged Ubayy suddenly said in a very harsh tone: I will put sword on the shoulder and spill the blood of the person who wishes to remove this alphabet from Quran.