Muslims believe that the Quran was verbally revealed from Allah to Muhammad (PBUH) through the angel Jibril a.s, gradually over a period of approximately 23 years, beginning on 22 December 609 CE, the Quran was collected by his companions using written Quranic materials and everything that had been memorized of the Quran.
Muslims regard the Quran as the most important miracle of Muhammad (PBUH), the proof of his prophethood and the culmination of a series of divine messages that started with the messages revealed to Adam (a.s.) and ended with Muhammad (PBUH). The Quran describes itself as a book of guidance. It sometimes offers detailed accounts of specific historical events, and it often emphasizes the moral significance of an event over its narrative sequence. The Quran is used along with the hadith to interpret sharia law. During prayers, the Quran is recited only in Arabic.