A Qur’an Like It.
Here’s the Sahih International translation:
11:12 Then would you possibly leave [out] some of what is revealed to you,or is your breast constrained by it because they say, “Why has there not been sent down to him a treasure or come with him an angel?”
But you are only a warner.
And Allāh is Disposer of all things.
13 Or do they say, “He invented it”?
Say, “Then bring ten sūrahs like it that have been invented and call upon [for assistance] whomever you can besides Allāh, if you should be truthful.”
14 And if they do not respond to you – then know that it [i.e., the Qur’ān] was revealed with the knowledge of Allāh and that there is no deity except Him.
Then, would you [not] be Muslims?
Koran 11:12-14
Here’s my improved version:
11:12 They say Koran better than Muhammad, Jibril and Allah.
13 They tell the truth, that he invented his Koran. Then Muhammad confirms it.
14 So now you know that being a Muslim means being a cultist, a follower of Muhammad not of the idol Allah, which is a creation of mere men, an idol.
Qur’an 11:12-14
As I’ve produced a better verse than Muhammad, this shows Muhammad is Allah, Allah is Muhammad, Koran comes from Muhammad (and friends), and Islam is false.
Koran Contradiction 