Mahabharata 13.99.19

दुर्लभं सलिलं तात विशेषेण परत्र वैपानीयस्य प्रदानेन प्रीतिर्भवति शाश्वती

durlabhaṃ salilaṃ tāta viśeṣeṇa paratra vaipānīyasya pradānena prītirbhavati śāśvatī

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