Satan has overcome them and made them forget the remembrance of Allah. Those are the party of Satan. Unquestionably, the party of Satan - they will be the losers.
Satan has gained the mastery over them, and caused them to forget God's Remembrance. Those are Satan's party; why, Satan's party, surely, they are the losers!
The Evil One has got the better of them: so he has made them lose the remembrance of Allah. They are the Party of the Evil One. Truly, it is the Party of the Evil One that will perish!