Padma Purana,
satyam kaliyuga vipra
sri harer nama mangalam
param svastyayanam nrnam
nasty-eva gatir anyatha
“Oh brahmana, chanting of the holy name is the auspicious process in Kali Yuga. It is the highest auspiciousness for mankind. There is no other way.”
Varaha Purana,
Krishna krsneti krsneti
svapan jagrad vrajamstatha
yo jal pati kalau nityam
Krishna-rupi bhaveddhi sah
“Whoever continuously chants Lord Krishna’s holy name, even in his sleep,
can easily realise that the name is a direct manifestation of Krishna Himself, in spite of the influences of Kali-yuga. This has been ordained by Lord Krishna.”
Skanda Purana,
kali-kala kusarpasya
tiksna-damstrasya ma bhayam
govinda-nama-danena
dagdho yasyati bhasmatam
“I see that Kali-yuga is like a black, poisonous snake with a gaping mouth and fangs. But please be unperturbed dear devotees and listen with faith. Once the holy name of the Lord is being chanted, it is like igniting a forest fire which will burn to ashes the poisonous snakes within the forest.”