The methodology followed to preserve the Koran is receiving the Koran verbally and orally from man to man in a chain to the apostle of God (Blessing and peace be upon him). The one we should learn the Koran from must have received it verbally and orally and corrected it from an older man, and this man from an older man until they reach the messenger of God (Blessing and peace of God be upon him). So earlier Muslims laid a wise rule: "Don't learn the Koran from Mos'hafey (someone who learnt it from Mos'haf)" i.e. don't learn the Koran from that who learnt it from mos'haf only not verbally from a sheikh, because such man will do mistakes in reciting. This is the right method old and contemporary Muslims follow in receiving and memorizing the Koran. They stipulate after good memorizing that one should get a license from earlier sheikhs.
Inn the year 610 the early Muslims begin to write down the Koran. This was back in history.
Is open-source development a top-down or bottom up methodology
He sat down.
The Berlin Wall came down
The Berlin Wall came down
The Berlin Wall came down
Luciferhad came first because he refused to bow down to adam and eve like the rest of the angels so he decidedto become evil.
In "Twilight," it was Edward Cullen who came rushing down the stairs to meet Bella when she arrived at the Cullen house for the first time.
It first came about as stories that Tolkien told to his children and then decided to write down.
Just go back down the way you came
Down from the glen came the marching men
the guitar was designed and first made by aliens that came down to earth