Mahabharata 10.18.21

ततः प्रसन्नो भगवान्प्रास्यत्कोपं जलाशयेस जलं पावको भूत्वा शोषयत्यनिशं प्रभो

tataḥ prasanno bhagavānprāsyatkopaṃ jalāśayesa jalaṃ pāvako bhūtvā śoṣayatyaniśaṃ prabho

Our plain-language meaning of this verse is waiting for scholar review.