Manusmriti

siva.sh/manusmriti/9/304

वार्षिकांश्चतुरो मासान् यथेन्द्रोऽभिप्रवर्षति । तथाऽभिवर्षेत् स्वं राष्ट्रं कामैरिन्द्रव्रतं चरन् ॥ ३०४ ॥

sanskrit

As Indra sends copious rain during the four months of the rainy season, even so let the king, taking upon himself the office of Indra, shower benefits on his kingdom.

english translation

vArSikAMzcaturo mAsAn yathendro'bhipravarSati | tathA'bhivarSet svaM rASTraM kAmairindravrataM caran || 304 ||

hk transliteration by Sanscript