TAITTIRĪYA UPANISHAD · 1.10

अहं वृक्षस्य रेरिवा । कीर्तिः पृष्ठं गिरेरिव ।
ऊर्ध्वपवित्रो वाजिनीव स्वमृतमस्मि ।
द्रविणंसवर्चसम् । सुमेधा अमृतोक्षितः ।
इति त्रिशङ्कोर्वेदानुवचनम् ।

ahaṃ vṛkṣasya rerivā । kīrtiḥ pṛṣṭhaṃ gireriva ।
ūrdhvapavitro vājinīva svamṛtamasmi ।
draviṇaṃsavarcasam । sumedhā amṛtokṣitaḥ ।
iti triśaṅkorvedānuvacanam ।

“I am He that moveth the Tree of the Universe & my glory is like the shoulders of a high mountain. I am lofty and pure like sweet nectar in the strong, I am the shining riches of the world, I am the deep thinker, the deathless One who decayeth not from the beginning.” This is Trishanku’s voicing of Veda and the hymn of his self-knowledge.

Sri Aurobindo · CWSA 18, p. 213