Skandapurana 16.31.2

16.31.2

kathaṃ vātra samāyātā kutaścāpi sarasvatī ..
kathaṃ sa vāḍavo jātaḥ kasminkāle kathaṃ hyabhūt ..
tatsarvaṃ vistareṇedaṃ yathāvadvaktumarhasi .. 2 ..

Or how did Sarasvatī arrive here, and from where? / How was that submarine fire born, at what time, and in what manner did it come to be? / You ought to tell me all this in detail and as it truly happened. 2