Cc. Ādi 17.217

tomāra mukhe kṛṣṇa-nāma,—e baḍa vicitra
pāpa-kṣaya gela, hailā parama pavitra

tomāra mukhe—in your mouth; kṛṣṇa-nāma—chanting of the holy name of Kṛṣṇa; e—this; baḍa—very; vicitra—wonderful; pāpa-kṣaya—nullifying of sinful activities; gela—has become a fact; hailā—have become; parama—topmost; pavitra—purified.

“The chanting of the holy name of Kṛṣṇa from your mouth has performed a wonder—it has nullified the reactions of all your sinful activities. Now you have become supremely pure.

Confirming the potency of the saṅkīrtana movement, these words from the very mouth of Lord Caitanya Mahāprabhu express how people can be purified simply by chanting the holy name of Lord Kṛṣṇa. The Kazi was a Muslim mleccha, or meat-eater, but because he several times uttered the holy name of Lord Kṛṣṇa, automatically the reactions of his sinful life were vanquished and he was fully purified of all material contamination. We do not know why the pāṣaṇḍīs of the present day protest that we are deteriorating the Hindu religion by spreading Kṛṣṇa consciousness all over the world and claiming all classes of men to the highest standard of Vaiṣṇavism. But these rascals disagree with us so vehemently that some of them do not allow European and American Vaiṣṇavas to enter into the temples of Viṣṇu. Thinking religion to be meant for material benefit, these so-called Hindus have actually become vicious by worshiping the numerous forms of the demigods. In the next verse Śrī Caitanya Mahāprabhu confirms the Kazi's purification.