Shatapatha Brahmana 3.5.1.22

3.5.1.22

sā devānupāvartsyantyuvāca | yadvā upāvarteya kim me tataḥ syāditi pūrvāmeva tvāgnerāhutiḥ prāpsyatītyatha haiṣā devānuvāca yām mayā kāṃ cāśiṣamāśāsiṣyadhve sā vaḥ sarvā samardhiṣyata iti saivaṃ devānupāvavarta

Being willing to go over to the gods, she said, 'What would be mine, if I were to come over to you?'--'The offering shall reach thee even before (it reaches) Agni.' She then said to the gods, 'Whatsoever blessing ye will invoke through me, all that shall be accomplished unto you!' So she went over to the gods.