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

Who could be more wicked than someone who invents a lie against God, or claims, ‘A revelation has come to me,’ when no revelation has been sent to him, or says, ‘I too can reveal something equal to God’s revelation’? If you could only see the wicked in their death agonies, as the angels stretch out their hands [to them], saying, ‘Give up your souls. Today you will be repaid with a humiliating punishment for saying false things about God and for arrogantly rejecting His revelations.’