Ramayana
दत्तस्य हि पुनर्दाने सुमहत्फलमुच्यते । भरणे हि भवान् शक्तः सेन्द्राणां मरुतामपि ॥ 7-76-31 ॥
For in giving again what has been given, a very great reward is declared; and you indeed are able to support even the Maruts together with Indra.
english translation