The holy name of Krsna is the controller of the opulence of liberation, and it is identical with Krsna. When a person simply chants the holy name with his tongue, immediate effects are produced

Expressions researched:
"The holy name of Kṛṣṇa is the controller of the opulence of liberation, and it is identical with Kṛṣṇa. When a person simply chants the holy name with his tongue, immediate effects are produced"

Sri Caitanya-caritamrta

CC Madhya-lila

The holy name of Kṛṣṇa is the controller of the opulence of liberation, and it is identical with Kṛṣṇa. When a person simply chants the holy name with his tongue, immediate effects are produced. Chanting the holy name does not depend on initiation, pious activities or the puraścaryā regulative principles generally observed before initiation. The holy name does not wait for any of these activities. It is self-sufficient.

CC Madhya 15.110, Translation and Purport

“‘The holy name of Lord Kṛṣṇa is an attractive feature for many saintly, liberal people. It is the annihilator of all sinful reactions and is so powerful that, save for the dumb who cannot chant it, it is readily available to everyone, including the lowest type of man, the caṇḍāla. The holy name of Kṛṣṇa is the controller of the opulence of liberation, and it is identical with Kṛṣṇa. When a person simply chants the holy name with his tongue, immediate effects are produced. Chanting the holy name does not depend on initiation, pious activities or the puraścaryā regulative principles generally observed before initiation. The holy name does not wait for any of these activities. It is self-sufficient.’”

This verse is found in the Padyāvalī (29), an anthology of verses compiled by Śrīla Rūpa Gosvāmī.