SB 7.1.44
tatas tau raksasau jatau
kesinyam visravah-sutau
ravanah kumbhakarnas ca
sarva-lokopatapanau
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Thereafter the same Jaya and Vijaya, the two doorkeepers of Lord Visnu, took birth as Ravana and Kumbhakarna, begotten by Visrava in the womb of Kesini. They were extremely troublesome to all the people of the universe.