Bhagavatapurana 6.3.23

23. My children, do you note the great virtue of uttering Sri Hari’s name; for only by virtue thereof even Ajamila escaped from the bonds of Death.

24. That the singing of Hari’s excellent qualities, deeds and names is capable of removing all the sins of men does not connote the full benefit thereof; for even Ajamila by merely calling out, when about to die, his son with the name Narayana attained to Mukti.