SB 9.24.35
iti tasyam sa adhaya
garbham suryo divam gatah
sadyah kumarah sañjajñe
dvitiya iva bhaskarah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
After saying this, the sun-god discharged his semen into the womb of Prtha and then returned to the celestial kingdom. Immediately thereafter, from Kunti a child was born, who was like a second sun-god.