What follows is a part of the book Nahj al-Balagha, the most famous collection of sermons, letters, tafsirs and stories attributed to Imam Ali (A.S).
It was collected by Al-Sharif al-Radi, the Shiite scholar of the tenth century. Known for its eloquent content, it is considered as a masterpiece of literature in Shiite Islam, ranked third behind the Qur’an and prophetic narratives. This is the 83th Sermon of this book.
In the Sermon of the Book of Nahj al-Balagha, Imam Ali (AS) warned against Satan’s Enmity.
According to Shafaqna, this is a part of this sermon:
I enjoin upon you fear of Allah Who has left no excuse against what He has warned, has exhausted argument (of guidance) about the (right) path He has shown. He has warned you of the enemy that steals into hearts and stealthily speaks into ears, and thereby misguides and brings about destruction, makes (false) promises and keeps under wrong impression, he represents evil sins in attractive shape, and shows as light even serious crimes.
When he has deceived his comrades and exhausted the pledge he begins to find fault with what he presented as good, and considers serious what he had shown as light, and threatens from what he had shown as safe.
Source: en.shafaqna.com