kaliṁ sabhājayanty āryā
guṇa-jñāḥ sāra-bhāginaḥ
yatra saṅkīrtanenaiva
sarva-svārtho 'bhilabhyate
kalim - Kali-yuga; sabhājayanti - worship; āryāḥ - advanced people; guṇa-jñāḥ - appreciating this good quality of Kali-yuga; sāra-bhāginaḥ - persons who accept the essence of life; yatra - in which age; saṅkīrtanena - simply by performing the saṅkīrtana-yajña, the chanting of the Hare Kṛṣṇa mantra; eva - certainly; sarva-sva-arthaḥ - all interests of life; abhilabhyate - are achieved.
This is a quotation from Śrīmad-Bhāgavatam (11.5.36) spoken by the great sage Karabhājana Ṛṣi, one of the nine Yogendras. The sage was informing Mahārāja Nimi about the people’s duty to worship the Supreme Personality of Godhead according to different processes in different yugas.