Ramayana
रोषात्तु ताम्रनयनः पुष्पकादवरुह्य सः । को ऽयं शङ्कर इत्युक्त्वा शैलमूलमुपागतः ॥ 7-16-12 ॥
his eyes coppery-red with fury, he descended from the Pushpaka, and saying "Who is this Shankara?" he came to the foot of the mountain.
english translation