According to hadith and Muslim history, after Muhammad immigrated to Medina and formed an independent Muslim community, he ordered many of his companions to recite the Quran and to learn and teach the laws, which were revealed daily.
It is related that some of the Quraysh who were taken prisoners at the Battle of Badr regained their freedom after they had taught some of the Muslims the simple writing of the time. As it was initially spoken, the Quran was recorded on tablets, bones, and the wide, flat ends of date palm fronds.
Following Muhammad's death in 632, a number of his companions who knew the Quran by heart were killed in the Battle of Yamama by Musaylimah. 634), subsequently decided to collect the book in one volume so that it could be preserved. 655) was the person to collect the Quran since "he used to write the Divine Inspiration for Allah's Apostle".
Thus, a group of scribes, most importantly Zayd, collected the verses and produced a hand-written manuscript of the complete book.
The Quran assumes familiarity with major narratives recounted in the Biblical scriptures.
The Quran is divided into chapters (surah in Arabic), which are then divided into verses (ayah).
Muslims believe that the Quran was verbally revealed by God to Muhammad through the angel Gabriel (Jibril), and the culmination of a series of divine messages that started with the messages revealed to Adam and ended with Muhammad.
Such terms include kitāb (book); āyah (sign); and sūrah (scripture).
The latter two terms also denote units of revelation.