Garudapurana 1.127.15

1.127.15

varāhāya namaḥ pādau kroḍākṛtaye namaḥ kaṭim /
nābhiṃ gaṃbhīraghoṣayā uraḥ śrīvatsadhāriṇe //

'Obeisance to Varāha' [worshipping] the two feet; 'Obeisance to the Boar-formed' the waist; / the navel with 'To the one with a deep roar'; the chest with 'To the bearer of the Śrīvatsa';