viharaṁs tattvam abravīt

sri-sukah uvaca-Sri Sukadeva Gosvami said; iti-thus; uktavantam-being addressed by Maharaja Satyavrata; nrpatim-unto the King; bhagavan-the Supreme Personality of Godhead; adi-purusah-the original person; matsya-rupi-who had assumed the form of a fish; maha-ambhodhau-in that water of inundation; viharan-while moving; tattvam abravit-explained the Absolute Truth.