Tafsir of Al-`Ankabut 29:68

ومن أظلم ممن افترى على الله كذبا أو كذب بالحق لما جاءه

And who does more wrong than he who invents a lie against Allah or denies the truth, when it comes to him! There is no one who will be more severely punished than one who tells lies about Allah and says that Allah revealed something to him at the time when Allah did not reveal anything to him, or says, `I shall reveal something like that which Allah revealed.' And there is no one who will be more severely punished than one who denies the truth when it comes to him, for the former is a fabricator and the latter is a disbeliever. Allah says:

أليس في جهنم مثوى للكافرين

Is there not a dwelling in Hell for the disbelievers! Then Allah says: