Al-An'am 6:93 ومن اظلم ممن افترى على الله كذبا او قال اوحي الي ولم يوح اليه شيء ومن قال سانزل مثل ما انزل الله ولو ترى اذ الظالمون في غمرات الموت والملايكة باسطو ايديهم اخرجوا انفسكم اليوم تجزون عذاب الهون بما كنتم تقولون على الله غير الحق وكنتم عن اياته تستكبرون ٩٣

And who can be more unjust than he who invents a lie against Allâh, or says: "A revelation has come to me" whereas no revelation has come to him in anything ; and who says, "I will reveal the like of what Allâh has revealed." And if you could but see when the Zâlimûn (polytheists and wrong-doers) are in the agonies of death, while the angels are stretching forth their hands (saying): "Deliver your souls! This day you shall be recompensed with the torment of degradation because of what you used to utter against Allâh other than the truth. And you used to reject His Ayât (proofs, evidence, verses, lessons, signs, revelations, etc.) with disrespect!¹"