Mahabharata 13.149.11

दानेन भोगी भवति मेधावी वृद्धसेवयाअहिंसया च दीर्घायुरिति प्राहुर्मनीषिणः

dānena bhogī bhavati medhāvī vṛddhasevayāahiṃsayā ca dīrghāyuriti prāhurmanīṣiṇaḥ

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