CC Madhya 22.102

śaraṇa lañā kare kṛṣṇe ātma-samarpaṇa
kṛṣṇa tāre kare tat-kāle ātma-sama
Word for word: 
śaraṇa lañā — taking shelter; kare — does; kṛṣṇe — unto Kṛṣṇa; ātma-samarpaṇa — fully surrendering; kṛṣṇa — Lord Kṛṣṇa; tāre — him; kare — makes; tat-kāle — immediately; ātma-sama — one of His confidential associates.
Translation: 
“When a devotee thus fully surrenders unto Kṛṣṇa’s lotus feet, Kṛṣṇa accepts him as one of His confidential associates.