SB 6.2.28
vrddhav anathau pitarau
nanya-bandhu tapasvinau
aho mayadhuna tyaktav
akrtajñena nicavat
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
My father and mother were old and had no other son or friend to look after them. Because I did not take care of them, they lived with great difficulty. Alas, like an abominable lower-class man, I ungratefully left them in that condition.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
According to Vedic civilization, everyone has the responsibility for taking care of brahmanas, old men, women, children and cows. This is the duty of everyone, especially an upper-class person. Because of his association with a prostitute, Ajamila abandoned all his duties. Regretting this, Ajamila now considered himself quite fallen.