The treacherous: Imam Ali (as) - Sayings on treachery

The treacherous person is one who busies himself with other than his self and his 'today' is worse than his 'yesterday'.

The enticer [towards deviance] and the treacherous one are alike.

The treacherous person has no loyalty in him.

From the signs of being forsaken [by Allah] is considering the treacherous to be trustworthy.