SB 4.1.23

 vidyotita-manā muniḥ
uttiṣṭhann eka-pādena
 dadarśa vibudharṣabhān
tat — their; prādurbhāva — appearance; saṁyoga — simultaneously; vidyotita — enlightened; manāḥ — in the mind; muniḥ — the great sage; uttiṣṭhan — being awakened; eka-pādena — even on one leg; dadarśa — saw; vibudha — demigods; ṛṣabhān — the great personalities.
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.