That person in whose tank water lies in the season of dew, acquires, the wise have said, the merits of an Agnishtoma sacrifice.
तु यस्य वै शैशिरे काले तडागे सलिलं भवेत्। तस्याग्निष्टोमयज्ञस्य फलमाहुर्मनीषिणः॥