SB 10.40.1
sri-akrura uvaca
nato ’smy aham tvakhila-hetu-hetum
narayanam purusam adyam avyayam
yan-nabhi-jatad aravinda-kosad
brahmavirasid yata esa lokah
Translation:
Sri Akrura said: I bow down to You, the cause of all causes, the original and inexhaustible Supreme Person, Narayana. From the whorl of the lotus born from Your navel, Brahma appeared, and by his agency this universe has come into being.