CC Madhya 20.346
tretāyāṁ dvāpare ’rcayan
yad āpnoti tad āpnoti
kalau saṅkīrtya keśavam
dhyāyan — meditating; kṛte — in Satya-yuga; yajan — worshiping; yajñaiḥ — by the performance of great sacrifices; tretāyām — in Tretā-yuga; dvāpare — in Dvāpara-yuga; arcayan — worshiping the lotus feet; yat — whatever; āpnoti — is achieved; tat — that; āpnoti — is obtained; kalau — in the Age of Kali; saṅkīrtya — simply by chanting; keśavam — the pastimes and qualities of Lord Keśava.
“ ‘Whatever is achieved by meditation in Satya-yuga, by the performance of yajña in Tretā-yuga or by the worship of Kṛṣṇa’s lotus feet in Dvāpara-yuga is also obtained in the Age of Kali simply by chanting the glories of Lord Keśava.’