Mudgalapurana 2.6.31

2.6.31

santatiṃ kratave cāsāvanasūyāṃ tathā'traye |
dadāvūrjāṃ vasiṣṭhāya mune svāhāṃ ca vahnaye ||

Santati to Kratu, and Anasūyā to Atri; / he gave Ūrjā to Vasiṣṭha, O sage, and Svāhā to Agni;