Mahabharata 13.66.2
पानीयदानं परमं कथं चेह महाफलम्इत्येतच्छ्रोतुमिच्छामि विस्तरेण पितामह
pānīyadānaṃ paramaṃ kathaṃ ceha mahāphalamityetacchrotumicchāmi vistareṇa pitāmaha
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book