SB 9.1.9
tasya nabheh samabhavat
padma-koso hiranmayah
tasmiñ jajñe maharaja
svayambhus catur-ananah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O King Pariksit, from the navel of the Supreme Personality of Godhead was generated a golden lotus, on which the four-faced Lord Brahma took his birth.