The Dakshina ordained in the scriptures for the great Horse-Sacrifice is the Earth, Hence, I have given away to the sacrificial priests the Earth conquered by Arjuna.
अश्वमेधे महायज्ञे पृथिवी दक्षिणा स्मृता॥ अर्जुनेन जिता चेयमृत्विग्भ्यः प्रापिता मया।