Bhagavatapurana 4.3.23

4.3.23

sattvaṃ viśuddhaṃ vasudeva-śabditaṃ yad īyate tatra pumān apāvṛtaḥ /
sattve ca tasmin bhagavān vāsudevo hy adhokṣajo me namasā vidhīyate //

23. The absolutely pure Sattva (Antaḥ-Karaṇa or the Sattvaguna) is called Vāsudeva, for through it the Perfect Person distinctly makes His appearance with nothing to screen Him off; so the glorious Vāsudeva who shows Himself unto those that have subdued the senses, is (always) worshipped by me through that Sattva.