With the name of Allah Most Gracious, Most Merciful
Sura 32 (As-Sajda)
The Quran is from Allah (SWT)
Verses2-3: (This is) the Revelation of the Book in which there is no doubt,- from the Lord of the Worlds. Or do they say, “He has forged it”? Nay, it is the Truth from thy Lord, that thou mayest admonish a people to whom no warner has come before thee: in order that they may receive guidance.
The Quran is a book whose wisdom and guidance is evidence that its author is Allah (SWT). If one just reflects on the scientific facts related in the Quran it is abundantly clear that such knowledge could only be from a divine source. Examples are given in Verses 4 and 6 onwards. There can be no doubt concerning the Quran on the contrary it should lead us to humble acceptance and submission.
The accusation of forgery is dealt with in Sura 10 Verse 38: Or do they say, “He forged it”? say: “Bring then a Sura like unto it, and call (to your aid) anyone you can besides Allah, if it be ye speak the truth!”