AB, 6, 14, 4.0 yatrādo gāyatrī suparṇo bhūtvā somam āharat tad etāsāṃ hotrāṇām indra ukthāni parilupya hotre pradadau yūyam mābhyahvayadhvaṃ yūyam asyāvediṣṭeti te hocur devā vāceme hotre prabhāvayāmeti tasmāt te dvipraiṣe bhavata ṛcāgnīdhrīyām prabhāvayāṃcakrus tasmāt tasyaikayarcā bhūyasyo yājyā bhavanti //