Bhagavatapurana 8.20.24

8.20.24

sandhyāṃ vibhorvāsasi guhya aikṣat prajāpatīn jaghane ātmamukhyān /
nābhyāṃ nabhaḥ kukṣiṣu saptasindhūn urukramasyorasi carkṣamālām //

24. He saw Sandhya (twilight) on the garment, Prajapatis on the secret parts and the Asuras headed by himself on the lower limb, the sky in the navel, the seven seas in the bowels and the hordes of stars on the chest, of the Lord of unlimited Prowess.