Surah 7. Al-A'raf, Ayah 201

The noun ta'if (also forthcoming in the forms tayf and tayyif denotes any ungraspable phantom, image or suggestion, as in a dream, or "an imperceptible obsession which obscures the mind" (Taj al-'Arus). Since, in the above context, it is described as coming from Satan, "a dark suggestion" seems to be an appropriate rendering.

Allah protects His own, as no one else can. He is the sure refuge-and the only one-for men of faith. If we are confused or angry, being blinded by this world, He will open our eyes.