Mantra 5

स होवाच प्रतिज्ञतो म एष वरः ।यां तु कुमारस्यान्ते वाचमभाषथास्तां मे ब्रूहीति ॥६,२.५ ॥

In plain words

He said, "The boon is promised me. Tell me the words thou didst speak in the presence of the boy."