Surah 20. Ta-Ha, Ayah 67

Lit., "conceived fear within himself". The implication is that the feat of the sorcerers was based on mass-hallucination (cf. 7:116 - "they cast a spell upon the people's eyes"), a hallucination to which even Moses succumbed for a while.

The concerted attack of evil is sometimes so well contrived from all points that falsehood appears and is acclaimed as the truth. The believer of truth is isolated, and a sort of moral dizziness creeps over his mind. But by Allah's grace Faith asserts itself, gives him confidence, and points out the specific truths which will dissipate and destroy the teeming brood of falsehood.