śrī-rājā uvāca - the King (Parīkṣit Mahārāja) said; bāṇasya - of the demon Bāṇa; tanayām - the daughter; ūṣām - named Ūṣā; upayeme - married; yadu-uttamaḥ - the best of the Yadus (Aniruddha); tatra - in connection with that; yuddham - a battle; abhūt - occurred; ghoram - fearsome; hari-śaṅkarayoḥ - between Lord Hari (Kṛṣṇa) and Lord Śaṅkara (Śiva); mahat - great; etat - this; sarvam - all; mahā-yogin - O great mystic; samākhyātum - to explain; tvam - you; arhasi - deserve.

King Parīkṣit said: The best of the Yadus married Bāṇāsura’s daughter, Ūṣā, and as a result a great, fearsome battle occurred between Lord Hari and Lord Śaṅkara. Please explain everything about this incident, O most powerful of mystics.