Mahabharata 12.275.17

प्रियं हि हर्षजननं हर्ष उत्सेकवर्धनःउत्सेको नरकायैव तस्मात्तं संत्यजाम्यहम्

priyaṃ hi harṣajananaṃ harṣa utsekavardhanaḥutseko narakāyaiva tasmāttaṃ saṃtyajāmyaham

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