trtiyam vadavam eke
tasam samjña-sutas trayah
yamo yami sraddhadevas
chayayas ca sutañ chrnu
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
It is said that the sun-god had a third wife, named Vadava. Of the three wives, the wife named Samjña had three children — Yama, Yami and Sraddhadeva. Now let me describe the children of Chaya.