Agni Purana 219.56

219.56

gandharvo varuṇo yaś ca navamaḥ pāntu rājyadāḥ /
himavān hemakūṭaś ca niṣadho nīla eva ca //

Gandharva, and Varuṇa which is the ninth—givers of kingdoms, may they protect [you]! / The Himavat, Hemakūṭa, Niṣadha, and Nīla;