Garudapurana 3.13.6

3.13.6

ādau sasarja garuḍa puruṣātmā sa eva ca /
tato dakṣiṇahastāttu brahmāṇīṃ bhārantī tathā //
(13.5)
asṛjatte mahābhāge avyaktasya niyāmike /
vāmahastātsatyaputro mahattatvātmako 'nalaḥ //

In the beginning, O Garuḍa, he created [him], and he is the self of the Puruṣa. / Then from his right hand [he created] Brahmāṇī and Bhāratī; / / (13.5) / he created those two highly fortunate ones, rulers of the Unmanifest. / From his left hand [came] the true son, Fire, whose nature is the Mahat principle.