CC Madhya 16.170

‘viśvāsa’ āsiyā prabhura caraṇa vandila
‘kṛṣṇa’ ‘kṛṣṇa’ kahi’ preme vihvala ha-ila
Word for word: 
viśvāsa — the secretary; āsiyā — coming; prabhura — of Lord Śrī Caitanya Mahāprabhu; caraṇa — the lotus feet; vandila — worshiped; kṛṣṇa kṛṣṇa — the holy name of the Lord, “Kṛṣṇa, Kṛṣṇa”; kahi’ — uttering; preme — in ecstasy; vihvala — overwhelmed; ha-ila — became.
Translation: 
The Muslim secretary came to see Śrī Caitanya Mahāprabhu. When he offered his respects to the Lord’s lotus feet and uttered the holy name of the Lord, “Kṛṣṇa, Kṛṣṇa,” he also was overwhelmed with ecstatic love.