Bhagavatapurana 3.8.32

3.8.32

tarhy eva tan-nābhi-saraḥ-sarojam ātmānam ambhaḥ śvasanaṃ viyac ca /
dadarśa devo jagato vidhātā nātaḥ paraṃ loka-visarga-dṛṣṭiḥ //

32. It is only then that Brahma the maker intent upon creating the world, saw and realised the lotus growing out of the Lord's navel, his own self, and also saw water, Vayu, and Akasa and no other thing.