CHĀNDOGYA UPANISHAD · 1.6.8

तस्यर्क् च साम च गेष्णौ ।
तस्माद् उद्गीथः ।
तस्मात् त्व् एव उद्गाता ।
एतस्य हि गाता ।
स एष ये चामुष्मात् पराञ्चो लोकास् तेषां चेष्ट देवकामानां च ।
इत्य् अधिदैवतम् ॥

tasyark ca sāma ca geṣṇau ।
tasmād udgīthaḥ ।
tasmāt tv eva udgātā ।
etasya hi gātā ।
sa eṣa ye cāmuṣmāt parāñco lokās teṣāṃ ceṣṭa devakāmānāṃ ca ।
ity adhidaivatam ॥

Rik and Sâman are his joints, and therefore he is udgîtha. And therefore he who praises him (the ut) is called the Ud-gâtri (the out-singer). He (the golden person, called ut) is lord of the worlds beyond that (sun), and of all the wishes of the Devas (inhabiting those worlds). So much with reference to the Devas.

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