Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 9
Sanskrit:
यदृच्छया तत्र महायशा मुनि:समागमच्छिष्यगणै: परिश्रित: ।तं वीक्ष्य तूष्णीमकृतार्हणादिकंरहस्युपासीनमृषिश्चुकोप ह ॥ ९ ॥
ITRANS:
yadṛcchayā tatra mahā-yaśā muniḥsamāgamac chiṣya-gaṇaiḥ pariśritaḥtaṁ vīkṣya tūṣṇīm akṛtārhaṇādikaṁrahasy upāsīnam ṛṣiś cukopa ha
Translation:
While Indradyumna Mahārāja was engaged in ecstatic meditation, worshiping the Supreme Personality of Godhead, the great sage Agastya Muni arrived there, surrounded by his disciples. When the Muni saw that Mahārāja Indradyumna, who was sitting in a secluded place, remained silent and did not follow the etiquette of offering him a reception, he was very angry.