Mahabharata 3.34.53
प्रजापालनसंभूतं फलं तव न गर्हितम्एष ते विहितो राजन्धात्रा धर्मः सनातनः
prajāpālanasaṃbhūtaṃ phalaṃ tava na garhitameṣa te vihito rājandhātrā dharmaḥ sanātanaḥ
Our plain-language meaning of this verse is waiting for scholar review.