In conversation with His Divine Grace A. C. Bhaktivedānta Swami Prabhupāda
Indian man: Srīla Prabhupāda, regarding karma. One does his job every day, and if he spends some time in the evening chanting Lord Krishna, do you approve this?
Prabhupāda: Oh, yes. Why not? Svalpam apy asya dharmasya trāyate mahato bhayāt [Bg. 2.40]. If you think of Krishna once – that will not go in vain. That is recorded. Just like Ajāmila. At the last stage of his life he chanted “Nārāyana” and became liberated. So if something is about Krishna, it is very good. And you’ll get chance to increase. If you believe that by chanting Hare Krishna you’ll be liberated, then why fifteen minutes? Why not fifteen hours? What is the loss there? If you chant Hare Krishna, Hare Krishna, what is the loss? Is there any loss? Then why fifteen minutes? Chant. Kīrtanīyah sadā harih [Cc. Ādi 17.31]. As long as you can. Now chant Hare Krishna.
[An excerpt from a question and answer session after a lecture on the Bhagavad-gītā 7.4 delivered in Bombay on February 19, 1974]