Pṛthivī-dohaṇa (The Milking of the Earth) and the Praise of King Pṛthu
बलश्रुततपोवीर्यैः पृथिव्यामेकराडसौ / प्राचीनाग्राः कुशास्तस्य तस्मात्प्राचीनबर्ह्यसौ
balaśrutatapovīryaiḥ pṛthivyāmekarāḍasau / prācīnāgrāḥ kuśāstasya tasmātprācīnabarhyasau
By strength, sacred learning of śruti, austerity, and valor, he was the sole sovereign upon the earth. The tips of his kuśa grass faced east; therefore he was called Prācīnabarhi.