بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ
Shaitaan inflicts a person with Doubts (Wasawis) to dissuade him from progressing in life and gaining closeness to Allah. He uses this in various aspects of a person’s life.
The most common wasawis are listed, and What to do when plagued by these doubts: :