Srimad-Bhagavatam: Canto 12 - Chapter 1 - Verse 32
Sanskrit:
तस्यैवं युञ्जतश्चित्तं तप:स्वाध्यायसंयमै: ।अनुग्रहायाविरासीन्नरनारायणो हरि: ॥ ३२ ॥
ITRANS:
tasyaivaṁ yuñjataś cittaṁtapaḥ-svādhyāya-saṁyamaiḥanugrahāyāvirāsīnnara-nārāyaṇo hariḥ
Translation:
Desiring to bestow His mercy upon the saintly Mārkaṇḍeya, who had perfectly fixed his mind in self-realization through penance, Vedic study and observance of regulative principles, the Supreme Personality of Godhead personally appeared before the sage in the forms of Nara and Nārāyaṇa.