Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 8
Sanskrit:
विवस्वतश्च द्वे जाये विश्वकर्मसुते उभे ।संज्ञा छाया च राजेन्द्र ये प्रागभिहिते तव ॥ ८ ॥
ITRANS:
vivasvataś ca dve jāyeviśvakarma-sute ubhesaṁjñā chāyā ca rājendraye prāg abhihite tava
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.