Kashyapa was the son of Marichi and Kashyapa's offspring were the Suras (celestial) and Asuras. O best of kings, therefore, he is the progenitor of all the worlds.
मरीचेः कश्यपः पुत्रः कश्यपस्य सुरासुराः। जज्ञिरे नृपशार्दूल लोकानां प्रभवस्तु सः॥