Mahabharata 3.157.32

न ग्लानिर्न च कातर्यं न वैक्लव्यं न मत्सरःकदाचिज्जुषते पार्थमात्मजं मातरिश्वनः

na glānirna ca kātaryaṃ na vaiklavyaṃ na matsaraḥkadācijjuṣate pārthamātmajaṃ mātariśvanaḥ

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