17فَمَن أَظلَمُ مِمَّنِ افتَرىٰ عَلَى اللَّهِ كَذِبًا أَو كَذَّبَ بِآياتِهِ ۚ إِنَّهُ لا يُفلِحُ المُجرِمونَMuhammad AsadAnd who could be more wicked than they who attribute their own lying inventions to God or give the lie to His messages? Verily, those who are lost in sin will never attain to a happy state1 -I.e., in the life to come. In this context, the "attributing of one's own lying inventions to God" would seem to apply specifically to the wanton accusation that Muhammad himself composed the Qur'an and then attributed it to God; and the "giving the lie to God's messages" refers to the attitude of those who make such an accusation and, consequently, reject the Qur'an (Razi)