SB 8.13.8

vivasvataś ca dve jāye
 viśvakarma-sute ubhe
saṁjñā chāyā ca rājendra
 ye prāg abhihite tava
Word for word: 
vivasvataḥ — of Vivasvān; ca — also; dve — two; jāye — wives; viśvakarma-sute — the two daughters of Viśvakarmā; ubhe — both of them; saṁjñā — Saṁjñā; chāyā — Chāyā; ca — and; rāja-indra — O King; ye — both of whom; prāk — before; abhihite — described; tava — unto you.
Translation: 
O King, I have previously described [in the Sixth Canto] the two daughters of Viśvakarmā, named Saṁjñā and Chāyā, who were the first two wives of Vivasvān.