SB 10.46.30
sri-uddhava uvaca
yuvam slaghyatamau nunam
dehinam iha mana-da
narayane ’khila-gurau
yat krta matir idrsi
Translation:
Sri Uddhava said: O respectful Nanda, certainly you and mother Yasoda are the most praiseworthy persons in the entire world, since you have developed such a loving attitude toward Lord Narayana, the spiritual master of all living beings.
Purport:
Understanding Nanda’s mood, as expressed by his statement manye krsnam ca ramam ca praptav iha surottamau (“I think Krsna and Rama must be two exalted demigods”), Uddhava here referred to Krsna as Lord Narayana.