Mahabharata 9.55.25

राजा च धृतराष्ट्रोऽद्य श्रुत्वा पुत्रं मया हतम्स्मरिष्यत्यशुभं कर्म यत्तच्छकुनिबुद्धिजम्

rājā ca dhṛtarāṣṭro'dya śrutvā putraṃ mayā hatamsmariṣyatyaśubhaṃ karma yattacchakunibuddhijam

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