Garudapurana 1.42.21

1.42.21

oṃ hāṃ (hauḥ) ātmatattvāya namaḥ /
oṃ hāṃ hīṃ hūṃ kṣaiṃ sarvatattvāya namaḥ /
kālātmanā tvayā deva yaddṛṣṭaṃ māmake vidhau //

Oṃ hāṃ, homage to the Ātman principle! / Oṃ hāṃ hīṃ hūṃ kṣaiṃ, homage to all principles! / O God, what was seen by you as the embodiment of Time in my rite…”