Vaishnava Dharmashastra 1.16

1.16

sthānapālān lokapālān nadīḥ śailavanaspatīn
ṛṣīṃś ca sapta dharmajñān vedān sānṅān surāsurān //

(He created) the rulers of the (seven) Dvîpas and the (eight) guardians of the world (Indra and the rest), the rivers, mountains, and trees, the seven Rishis, who know (and practise) the law, the Vedas together with their Angas, the Suras, and the Asuras.