ŚVETĀŚVATARA UPANISHAD · 3.14

सहस्रशीर्षा पुरुषः सहस्राक्षः सहस्रपात् ।
स भूमिं विश्वतो वृत्वा अत्यतिष्ठद् दशाङ्गुलम् ॥

sahasraśīrṣā puruṣaḥ sahasrākṣaḥ sahasrapāt ।
sa bhūmiṃ viśvato vṛtvā atyatiṣṭhad daśāṅgulam ॥

The person (purusha) with a thousand heads. a thousand eyes, a thousand feet, having compassed the earth on every side, extends beyond it by ten fingers' breadth.

F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)