An-Nas Verse 4

from the evil of the lurking whisperer—

from the harm of the lurking whisperer,

from the evil of the slinking whisperer

against the harm of the slinking whisperer––

From the evil of the sneaking whisperer

From the mischief of the Whisperer (of Evil), who withdraws (after his whisper),-

from the mischief of the whispering, elusive prompter who returns again and again,

From the evil of him who breathes temptations into the minds of men,

“From the evil of the one who instils evil thoughts in the hearts – and stays hidden.”

from the evil of the sneaky tempter

"From the evil of the sneaking whisperer (the Satan),

`(That He may protect me) from the evil (of the whisperings) of the whisperer, the sneaking one.

From bad/evil/harm (of) the inspirer and talker/giver of evil suggestions and temptations (whisperer of evil influences), the devil .

“From the evil of the one who instils evil thoughts in the hearts – and stays hidden.”

From the mischief of the Whisperer, who slinks off,

"From the evil of the whisperer (devil who whispers evil in the hearts of men) who withdraws (from his whispering in one's heart after one remembers Allah),

From the evil of the whisperings of the slinking (devil),

From the evil of the whisperings of the slinking (Shaitan),

From the evil of the sneaking whisperer,

against the evil of the temptations of the satans,

from the evil of the slinking whisperer.

"From the evil of the whisperer who withdraws."

from the mischief of every sneaking whis-perer,

From the evil of the sneaky whisperer.

from the evil of the slinking whisperer, Satan -- he is referred to by the name of the action [waswasa] on account of his repeated engaging in it -- who slinks [away] and recoils from the heart whenever God is mentioned,

الْوَسْوَاسِ الْخَنَّاس

The whisperer (Al-Waswas) who withdraws.

"The devil who is squatting (perched) upon the heart of the Son of Adam. So when he becomes absentminded and heedless he whispers. Then, when he remembers Allah he withdraws."

Mujahid and Qatadah also said this.

Al-Mu`tamir bin Sulayman reported that his father said,

"It has been mentioned to me that Shaytan is Al-Waswas. He blows into the heart of the Son of Adam when he is sad and when he is happy. But when he (man) remembers Allah, Shaytan withdraws."

Al-`Awfi reported from Ibn Abbas;
الْوَسْوَاسِ
The whisperer.

"He is Shaytan. He whispers and then when he is obeyed, he withdraws."

As for Allah's saying;

الَّذِي يُوَسْوِسُ فِي صُدُورِ النَّا