Garudapurana 1.15.77

1.15.77

prakṛtiḥ kaustubhagrīvaḥ pītāmbaradharastathā /
sumukho durmukhaścaiva munakhena tu vivarjitaḥ //

primordial nature (prakṛti), having the Kaustubha jewel on his neck, wearing yellow garments; / having a pleasant face, having a terrible face, and devoid of a mouth;