prthur vainyah pratapavan
stavakan-engaged in offering prayers; tan-those persons; abhipretya-seeing, understanding; prthuh-King Prthu; vainyah-son of Vena; pratapa-van-greatly powerful; megha-nirhradaya-as grave as the thundering of clouds; vaca-with a voice; prahasan-smiling; idam-this; abravit-he spoke.