Q Seneca [Nero's advisor ]responded to Nero's statement that gods didn't need to concern themselves with the cost of things.{ his rebuilding of Rome ...had run our of money]

What is the "source of Seneca's" the conversation & response... which I think went like this....
Seneca: the funds for construction have been exhausted

Nero: Gods are not concerned about such things.

Seneca: Gods may not be effected or concerned about
such things ...but Emperors are !!

Would like to get the source and details on this great historic
discussion between Seneca v Nero