In the name of Allah, Most Gracious, Most Merciful.
How we know that the Qur'an is not Satan's handiwork?
In reply to similar allegation put forward by the pagans of Makkah,that the Prophet (pbuh) received the revelations from Satan, the following verses were revealed:
Surah Al-Waqiah, chapter 56 verses 77 - 80;
"That this is indeed A Qur'an most honourable, In a Book well-guarded, Which none shall touch But those who are clean: A Revelation from the Lord Or the Worlds."
Kitabim Makmoon means a well guarded book, referring to al-Lauh al-Mahfuz in heaven, which none shall touch except the Mutahhareen, i.e. those who do not have any uncleanliness or impurity or evil like sin. This refers to the Angles. Satan is absolutely prohibited.
Thus since it is imposible for Satan to be anywhere close to it or touch it, the question of him writing the verses of the Glorious Qur'an, does not arise.
It is further mentioned in Surah As-Shura, Chapter 26 verses 210-212;
"No evil ones have brought Down this (Revelation): It would neither suit them Nor would they be able (To produce it). Indeed they have been removed Far from even (a chance of) Hearing it."
Many people have a wrong concept of Satan. They think that Satan can probably do everything, except for a couple of things which only God can do. According to them, Satan is slightly below God in power. Since the people do not want accept that the Qur'an is a miraculous revelation, they say that it is Satan's handiwork.
If Satan wrote the Qur'an, he would not have mentioned in the same Qur'an in surah An-Nahl, chapter 16 verse no. 98;
"When thou does read The Qur'an, seek Allah's protection from Satan the Rejected One."
Is this how you think Satan would write a book? Does he tell you; "Before you read my book ask God to save you from me?"
There are several verses in the Qur'an which will give enough evidence that Satan is not the author of the Qur'an.
In surah Al- A'raf chapter 7 verse 200;
"If a suggestion from Satan assail your (mind), seek refuge with Allah; for He hears and knows (all things)"
Why would satan tell his followers, that whenever he gives any suggestions to them, they should seek refuge in Allah (swt) to whom he is an avowed enemy.
In surah Al-Baqarah, chapter 2 verse 168;
O ye people! Eat of what is on earth, lawful and good; and do not follow the footstep of the Evil one, For he is to you an avowed enemy."
Satan is cunning, no wonder that he can possess the minds of the people to think that he wrote the Qur'an. Compared to Almighty God, Satan is insignificant, and Allah (swt) is far more intelligent. He knows Satan's evil intentions and hence no wonder that He has given the reader of the Qur'an several proofs to show that the Qur'an is God's word, and not Satan's word.
Book 20 MOST COMMON QUESTIONS ABOUT ISLAM by Dr. Zakir Abdul-Karim Naik.