(This is) the Revelation of the Book in which there is no doubt,-(3629) from the Lord of the Worlds.
3629 By the time of Prophet the earlier Book of Revelation had been corrupted by human ignorance or selfishness or fraud, or misinterpreted or lost altogether. There were sects violently disputing with each other as to their true meaning. Such doubts had to be set at rest and they were set at rest by the revelation of the Qur'an. The Quranic inspiration came directly from Allah, the Lord of the Worlds, and did not consist merely of human conjecture or a reconstructed philosophy, in which there is always room for doubt or dispute. Cf. also 2:2.