Lord Nārāyaṇa was seated on the shoulder of Stotra, or Garuḍa, who had big wings. As soon as the Lord appeared, all directions were illuminated, diminishing the luster of Brahmā and the others present.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तदा स्वप्रभया तेषां द्योतयन्त्या दिशो दश । मुष्णंस्तेज उपानीतस्तार्क्ष्येण स्तोत्रवाजिना
tadā svaprabhayā teṣāṃ dyotayantyā diśo daśa | muṣṇaṃsteja upānītastārkṣyeṇa stotravājinā
SB 4.7.19