SB 10.37.9
devarsir upasangamya
bhagavata-pravaro nrpa
krsnam aklista-karmanam
rahasy etad abhasata
Translation:
My dear King, thereafter Lord Krsna was approached in a solitary place by the great sage among the demigods, Narada Muni. That most exalted devotee spoke as follows to the Lord, who effortlessly performs His pastimes.
Purport:
After speaking with Kamsa, Narada went to see Lord Krsna. The Lord’s Vrndavana pastimes were nearly completed, and Narada wanted to see those He would enact in Mathura.