Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 23
Sanskrit:
तत्प्रादुर्भावसंयोगविद्योतितमना मुनि: ।उत्तिष्ठन्नेकपादेन ददर्श विबुधर्षभान् ॥ २३ ॥
ITRANS:
tat-prādurbhāva-saṁyoga-vidyotita-manā muniḥuttiṣṭhann eka-pādenadadarśa vibudharṣabhān
Translation:
The sage was standing on one leg, but as soon as he saw that the three deities had appeared before him, he was so pleased to see them all together that despite great difficulty he approached them on one leg.