Mahabharata 1.99.27

तमासनगतं माता पृष्ट्वा कुशलमव्ययम्सत्यवत्यभिवीक्ष्यैनमुवाचेदमनन्तरम्

tamāsanagataṃ mātā pṛṣṭvā kuśalamavyayamsatyavatyabhivīkṣyainamuvācedamanantaram

Our plain-language meaning of this verse is waiting for scholar review.