Śrīmad-Bhāgavatam · Text 12.3.51
Who is speaking and story frame
कलेर्दोषनिधे राजन्नस्ति ह्येको महान् गुण: ।
कीर्तनादेव कृष्णस्य मुक्तसङ्ग: परं व्रजेत् ॥ ५१ ॥
kaler doṣa-nidhe rājann
asti hy eko mahān guṇaḥ
kīrtanād eva kṛṣṇasya
mukta-saṅgaḥ paraṁ vrajet
My dear King, although Kali-yuga is an ocean of faults, there is still one good quality about this age: Simply by chanting the Hare Kṛṣṇa mahā-mantra, one can become free from material bondage and be promoted to the transcendental kingdom.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.