Imam Ali (AS) said:

Those who deviated from the right path embrace Satan as their guideline, and Satan placed them in its net, and planted (its) seeds in their hearts, and nurtured its offspring in their lap. (Satan) looked with their eyes, and spoke with their tongues. Then mounted on the horse of deviation with their help, and (Satan) misrepresented to them bad behaviours as good, like showing them the behaviour of the one who is a partner in Satanic rule and speaks untruth with the tongue of Satan [1].

[1] Nahjul Balaghah, Sermon 7.

Source: en.shafaqna.com