Matsyapurana 127.23

127.23

hṛdi nārāyaṇaḥ sādhyā aśvinau pūrvapādayoḥ
varuṇaścāryamā caiva paścime tasya sakthinī //

Thus is His form :—Uttâna-pada is the chin of Śiśumâra, Sacrifice is the lower lip, Dharma is the forehead. Nârâyaṇa and the Sâdhyas are enshrined in the heart; the Asvins form the two feet on the eastern side (the right foot). Varuṇa and Âryamâ form the two legs towards the west (the left foot).—22-23.