Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 21
Sanskrit:
उग्रसेन: क्षितेशेशो यद् व आज्ञापयत् प्रभु: ।तदव्यग्रधिय: श्रुत्वा कुरुध्वमविलम्बितम् ॥ २१ ॥
ITRANS:
ugrasenaḥ kṣiteśeśoyad va ājñāpayat prabhuḥtad avyagra-dhiyaḥ śrutvākurudhvam avilambitam
Translation:
[Lord Balarāma said:] King Ugrasena is our master and the ruler of kings. With undivided attention you should hear what he has ordered you to do, and then you should do it at once.