Mahabharata 5.151.12
शकुनिः सौबलश्चैव कर्णदुःशासनावपित्वय्ययुक्तान्यभाषन्त मूढा मूढममर्षणम्
śakuniḥ saubalaścaiva karṇaduḥśāsanāvapitvayyayuktānyabhāṣanta mūḍhā mūḍhamamarṣaṇam
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book