Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 7
Sanskrit:
सोऽश्वमेधैरयजत सर्ववेदसुरात्मकम् ।और्वोपदिष्टयोगेन हरिमात्मानमीश्वरम् ।तस्योत्सृष्टं पशुं यज्ञे जहाराश्वं पुरन्दर: ॥ ७ ॥
ITRANS:
so ’śvamedhair ayajatasarva-veda-surātmakamaurvopadiṣṭa-yogenaharim ātmānam īśvaramtasyotsṛṣṭaṁ paśuṁ yajñejahārāśvaṁ purandaraḥ
Translation:
Following the instructions of the great sage Aurva, Sagara Mahārāja performed aśvamedha sacrifices and thus satisfied the Supreme Lord, who is the supreme controller, the Supersoul of all learned scholars, and the knower of all Vedic knowledge, the Supreme Personality of Godhead. But Indra, the King of heaven, stole the horse meant to be offered at the sacrifice.