Ramayana
सुकृतस्य हि कार्यस्य फलं नापैति पार्थिवः । तस्माद्गच्छ प्रतीक्षस्व सौमित्रे कार्यवाञ्जनः ॥ 7-53-26 ॥
For a king does not lose the fruit of a deed well performed; therefore go, Saumitri, and wait there, for a man who has work to do.
english translation