CHĀNDOGYA UPANISHAD · 3.12.6

तावान् अस्य महिमा ततो ज्यायांश् च पुरुषः ।
पादो ऽस्य सर्वा भूतानि त्रिपाद् अस्यामृतं दिवीति ॥

tāvān asya mahimā tato jyāyāṃś ca puruṣaḥ ।
pādo ’sya sarvā bhūtāni tripād asyāmṛtaṃ divīti ॥

'Such is the greatness of it (of Brahman, under the disguise of Gâyatrî ); greater than it is the Person (purusha). His feet are all things. The immortal with three feet is in heaven (i. e. in himself).'

F. Max Müller · The Upanishads, Sacred Books of the East 1 (1879)