Srimad Bhagavatam Canto 07, Chapter 01, Text 33

SB 7.1.33

matr-svasreyo vas caidyo
 dantavakras ca pandava
parsada-pravarau visnor
 vipra-sapat pada-cyutau
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Narada Muni continued: O best of the Pandavas, your two cousins Sisupala and Dantavakra, the sons of your maternal aunt, were formerly associates of Lord Visnu, but because they were cursed by brahmanas, they fell from Vaikuntha to this material world.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:  
 
Sisupala and Dantavakra were not ordinary demons, but were formerly personal associates of Lord Visnu. They apparently fell to this material world, but actually they came to assist the Supreme Personality of Godhead by nourishing His pastimes within this world.
Srimad Bhagavatam Canto 07, Chapter 01, Text 32
Srimad Bhagavatam Canto 07, Chapter 01, Text 34