Caitanya-caritāmṛta 3.50
vyakta kari’ bhāgavate kahe bāra bāra kali-yuge dharma — nāma-saṅkīrtana sāra
[vyakta kari’ bhaagavate kahe baara baara kali-yuge dharma — naama-sankeertana saara]
Blended reading (Sanskrit + English inline)
vyakta kari’ bhāgavate kahe bāra bāra kali-yuge dharma — nāma-saṅkīrtana sāra
In Śrīmad-Bhāgavatam it is repeatedly and clearly said that the essence of religion in the Age of Kali is the chanting of the holy name of Kṛṣṇa.
My note
Source: vedabase.io