CC Madhya 22.101
tathaiva manasā vidan
tat-sthānam āśritas tanvā
“ ‘One whose body is fully surrendered takes shelter at the holy place where Kṛṣṇa had His pastimes, and he prays to the Lord, “My Lord, I am Yours.” Understanding this with his mind, he enjoys spiritual bliss.’
The last two verses appear in the Hari-bhakti-vilāsa (11.417-18).