BṚHADĀRAṆYAKA UPANISHAD · 3.1.3

याज्ञवल्क्येति होवाच -- यद् इदं सर्वं मृत्युनाप्तं सर्वं मृत्युनाभिपन्नं केन यजमानो मृत्योर् आप्तिम् अतिमुच्यत इति ।
होत्रर्त्विजाग्निना वाचा ।
वाग् वै यज्ञस्य होता ।
तद् येयं वाक् सो ऽयम् अग्निः स होता सा मुक्तिः सातिमुक्तिः ॥

yājñavalkyeti hovāca -- yad idaṃ sarvaṃ mṛtyunāptaṃ sarvaṃ mṛtyunābhipannaṃ kena yajamāno mṛtyor āptim atimucyata iti ।
hotrartvijāgninā vācā ।
vāg vai yajñasya hotā ।
tad yeyaṃ vāk so ’yam agniḥ sa hotā sā muktiḥ sātimuktiḥ ॥

'Yâgñavalkya, he said, 'everything here (connected with the sacrifice) is reached by death, everything is overcome by death. By what means then is the sacrificer freed beyond the reach of death?' Yâgñavalkya said: 'By the Hotri priest, who is Agni (fire), who is speech. For speech is the Hotri of the sacrifice (or the sacrificer), and speech is Agni, and he is the Hotri. This constitutes freedom, and perfect freedom (from death).'

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