SB 9.9.18
tatah sudasas tat-putro
damayanti-patir nrpah
ahur mitrasaham yam vai
kalmasanghrim uta kvacit
vasistha-sapad rakso ’bhud
anapatyah sva-karmana
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Sarvakama had a son named Sudasa, whose son, known as Saudasa, was the husband of Damayanti. Saudasa is sometimes known as Mitrasaha or Kalmasapada. Because of his own misdeed, Mitrasaha was sonless and was cursed by Vasistha to become a man-eater [Raksasa].