Mahabharata 3.30.1

युधिष्ठिर उवाच · yudhiṣṭhira uvāca

क्रोधो हन्ता मनुष्याणां क्रोधो भावयिता पुनःइति विद्धि महाप्राज्ञे क्रोधमूलौ भवाभवौ

krodho hantā manuṣyāṇāṃ krodho bhāvayitā punaḥiti viddhi mahāprājñe krodhamūlau bhavābhavau

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