Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 52
Sanskrit:
एवं दैत्यैर्महामायैरलक्ष्यगतिभीरणे ।सृज्यमानासु मायासु विषेदु: सुरसैनिका: ॥ ५२ ॥
ITRANS:
evaṁ daityair mahā-māyairalakṣya-gatibhī raṇesṛjyamānāsu māyāsuviṣeduḥ sura-sainikāḥ
Translation:
While this magical atmosphere in the fight was being created by the invisible demons, who were expert in such illusions, the soldiers of the demigods became morose.