Analysis of information sources in references of the Wikipedia article "Hiranyagarbha" in English language version.
9. That (seed) became a golden egg, in brillance equal to the sun; in that (egg) he himself was born as Brahman [(Brahma)], the progenitor of the whole world.
9. That became a golden egg, as bright as the sun; and in it he himself took birth as Brahma, the grandfather of all the worlds.