Translation of the verse 4 from Surah Al-Furqan : Number of verses 77 - - page 360 - Part 18.
Those who disbelieve say: "This (the Quran) is nothing but a lie that he (Muhammad SAW) has invented, and others have helped him at it, so that they have produced an unjust wrong (thing) and a lie."
And those who disbelieve say, "This [Qur'an] is not except a falsehood he invented, and another people assisted him in it." But they have committed an injustice and a lie.
(25:4) Those who have rejected the Message of the Prophet, say, "This (A1-Furgan) is a forgery which this man himself has devised, and some others have helped him at it. " What a cruel injustice *11 and an impudent lie!
*11) Another translation may be: "a great injustice."