Srimad Bhagavatam Canto 06, Chapter 02, Text 33

SB 6.2.33

anyatha mriyamanasya
 nasucer vrsali-pateh
vaikuntha-nama-grahanam
 jihva vaktum iharhati
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Were it not for my past devotional service, how could I, a most unclean keeper of a prostitute, have gotten an opportunity to chant the holy name of Vaikunthapati when I was just ready to die? Certainly it could not have been possible.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The name Vaikunthapati, which means “the master of the spiritual world,” is not different from the name Vaikuntha. Ajamila, who was now a realized soul, could understand that because of his past spiritual activities in devotional service, he had gotten this opportunity to chant the holy name of Vaikunthapati in his horrible condition at the time of death.
Srimad Bhagavatam Canto 06, Chapter 02, Text 32
Srimad Bhagavatam Canto 06, Chapter 02, Text 34