Markandeya Purana 77.36

77.36

tataḥ sā kathayāmāsa yathāvṛttaṃ vivasvataḥ /
viditārthaśca bhagavān jagāma tvaṣṭurālayam //

Mārkaṇḍeya spoke:
Hearing this speech from Yama, the adorable Dispeller of darkness called the Shadow-Sañjñā and asked her—“Where has she gone?” And she answered—“I am Tvaṣṭṛ’s daughter Sañjñā, O god of fire, thy wife; through thee these children were begotten of me.” Now when, as Vivasvat was thus questioning her repeatedly, she did not speak further, the Sun enraged thereat prepared to curse her. Thereupon she told the Sun what had happened, and the god knowing the truth went to Tvaṣṭṛ’s abode.