Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 7
Sanskrit:
ततो निष्क्रम्य बलिन उपदेवमहाभटा: । असहन्तस्तन्निनादमभिपेतुरुदायुधा: ॥ ७ ॥
ITRANS:
tato niṣkramya balinaupadeva-mahā-bhaṭāḥasahantas tan-ninādamabhipetur udāyudhāḥ
Translation:
O hero Vidura, the greatly powerful heroes of the Yakṣas, unable to tolerate the resounding vibration of the conchshell of Dhruva Mahārāja, came forth from their city with weapons and attacked Dhruva.