Mudgalapurana 3.46.37

3.46.37

ato'haṃ brāhmaṇān sarvānnamāmi vacanaṃ tathā |
hitaṃ cettad grahīṣyāmi nānyathā guravaḥ kadā ||

Therefore, I bow down to all Brāhmaṇas; and as for their word, / if it is beneficial, I shall accept it, never otherwise, O teachers.”