Atri Smriti 3.13

3.13

gāruḍāni ca sāmāni gāyatrīṃ raivataṃ tathā
puruṣavratañca bhāvañca tathā vedakṛtāni ca

the Gāruḍa sāmans, the Gāyatrī, the Raivata, / the Puruṣavrata, the Bhāva, and those composed in the Vedas;