Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 16
Sanskrit:
भीमसेनोऽर्जुन: कृष्णो ब्रह्मलिङ्गधरास्त्रय: ।जग्मुर्गिरिव्रजं तात बृहद्रथसुतो यत: ॥ १६ ॥
ITRANS:
bhīmaseno ’rjunaḥ kṛṣṇobrahma-linga-dharās trayaḥjagmur girivrajaṁ tātabṛhadratha-suto yataḥ
Translation:
Thus Bhīmasena, Arjuna and Kṛṣṇa disguised themselves as brāhmaṇas and went to Girivraja, my dear King, where the son of Bṛhadratha was to be found.