Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 6
Sanskrit:
श्रीशुक उवाचकृष्णस्यासीत् सखा कश्चिद् ब्राह्मणो ब्रह्मवित्तम: ।विरक्त इन्द्रियार्थेषु प्रशान्तात्मा जितेन्द्रिय: ॥ ६ ॥
ITRANS:
śrī-śuka uvācakṛṣṇasyāsīt sakhā kaścidbrāhmaṇo brahma-vittamaḥvirakta indriyārtheṣupraśāntātmā jitendriyaḥ
Translation:
Śukadeva Gosvāmī said: Lord Kṛṣṇa had a certain brāhmaṇa friend [named Sudāmā] who was most learned in Vedic knowledge and detached from all sense enjoyment. Furthermore, his mind was peaceful and his senses subdued.