Surah 114. An-Nas, Ayah 4

Evil insinuates itself in all sorts of insidious ways from within so as to sap man's will, which was given to man by Allah. This power of evil may be Satan, or evil men or the evil inclinations within man's own will: for there are "evil ones among men and Jinns, inspiring each other with flowery discourses by way of deception" (vi. 112). They secretly whisper evil and then withdraw, to make their net the more subtle and alluring.