Agnipurana 155.10

155.10

gāyatrīṃ tu viśeṣeṇa aghamarṣaṇasūktake /
devatā bhāvavṛttastu ṛṣiś caivāghamarṣaṇaḥ //

Especially the Gāyatrī. In the Aghamarṣaṇa hymn, / the deity is Bhāvavṛtta, and the sage is Aghamarṣaṇa;