śrī-śuka uvāca
sarasvatyās taṭe rājann
ṛṣayaḥ satram āsata
vitarkaḥ samabhūt teṣāṁ
triṣv adhīśeṣu ko mahān
śrī-śukaḥ uvāca - Śukadeva Gosvāmī said; sarasvatyāḥ - of the river Sarasvatī; taṭe - on the bank; rājan - O King (Parīkṣit); ṛṣayaḥ - sages; satram - a Vedic sacrifice; āsata - were performing; vitarkaḥ - a disagreement; samabhūt - arose; teṣām - among them; triṣu - among the three; adhīśeṣu - chief lords; kaḥ - who; mahān - the greatest.
The three chief deities mentioned here are Lord Viṣṇu, Lord Brahmā and Lord Śiva.