Praśna Upaniṣad ("Six Questions") 6.p2

6.p2

bhagavanhiraṇyanābhaḥ kausalyo rājaputro māmupetyaitaṃ praśnamapṛcchata

asked this question: "Bhāradvāja, do you know the Person with the sixteen parts?" I said to the youth: "I know him not. If I had known him, would I not have told you? Verily, he dries up even to the roots, who speaks untruth. Therefore it is not proper that I should speak untruth." In silence he mounted his chariot and departed.