Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 21
Sanskrit:
आसन्नशौण्डीरमपेतसाध्वसंकृतप्रतीकारमहार्यविक्रमम् ।विलक्ष्य दैत्यं भगवान् सहस्रणी-र्जगाद नारायणमादिसूकरम् ॥ २१ ॥
ITRANS:
āsanna-śauṇḍīram apeta-sādhvasaṁkṛta-pratīkāram ahārya-vikramamvilakṣya daityaṁ bhagavān sahasra-ṇīrjagāda nārāyaṇam ādi-sūkaram
Translation:
After arriving at the place of combat, Brahmā, the leader of thousands of sages and transcendentalists, saw the demon, who had attained such unprecedented power that no one could fight with him. Brahmā then addressed Nārāyaṇa, who was assuming the form of a boar for the first time.