The Repentance - 9:125
As for those in whose hearts is a disease. He has added evil to their evil, and they die as disbelievers.
Why does Allah add evil to the evil of the disbelievers?
The Women/4:115
Whoever disobeys the messenger after the right way has become clear to him and takes a way other than the way of the believers, We will turn him in the direction he chose and We will cast him into Hell. What an evil place of return.