tvastur daityatmaja bharya
racana nama kanyaka
sannivesas tayor jajne
visvarupas ca viryavan
tvastuh—of Tvasta; daitya-atma-ja—the daughter of a demon; bharya—wife; racana—Racana; nama—named; kanyaka—a maiden; sannivesah—Sannivesa; tayoh—of those two; jajne—was born; visvarupah—Visvarupa; ca—and; viryavan—very powerful in bodily strength.
Racana, the daughter of the Daityas, became the wife of Prajapati Tvasta. By his semina he begot in her womb two very powerful sons named Sannivesa and Visvarupa.
Link to this page: https://prabhupadabooks.com/sb/6/6/44