Mahabharata 3.2.26

मनसो दुःखमूलं तु स्नेह इत्युपलभ्यतेस्नेहात्तु सज्जते जन्तुर्दुःखयोगमुपैति च

manaso duḥkhamūlaṃ tu sneha ityupalabhyatesnehāttu sajjate janturduḥkhayogamupaiti ca

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