tam ca brahmarsayo ’bhyetya
yathavad diksayam cakruh
tam—him (Lord Indra); ca—and; brahma-rsayah—the great saints and brahmanas; abhyetya—approaching; hayamedhena—with an asvamedha sacrifice; bharata—O King Pariksit; yathavat—according to the rules and regulations; diksayam cakruh—initiated; purusa-aradhanena—which consists of worship of the Supreme Person, Hari; ha—indeed.
O King, when Lord Indra reached the heavenly planets, the saintly brahmanas approached him and properly initiated him into a horse sacrifice [asvamedha-yajna] meant to please the Supreme Lord.
Link to this page: https://prabhupadabooks.com/sb/6/13/18