Mandala 2, Hymn 15, Verse 1
प्र घा॒ न्व॑स्य मह॒तो म॒हानि॑ स॒त्या स॒त्यस्य॒ कर॑णानि वोचम् त्रिक॑द्रुकेष्वपिबत्सु॒तस्या॒स्य मदे॒ अहि॒मिन्द्रो॑ जघान
"Now, verily, will I declare the exploits, mighty and true, of him the True and Mighty. In the Trikadrukas he drank the Soma then in its rapture Indra slew the Dragon."