Deny Muhammad
But whoever disobeys Allah and His Messenger and transgresses His limits will be cast into a fire.
4:14And whoso disobeyeth Allah and His messenger and transgresseth His limits, He will make him enter Fire, where he will dwell for ever; his will be a shameful doom.
48:13And so for him who believeth not in Allah and His messenger - Lo! We have prepared a flame for disbelievers.