Skandapurana 1.4.37.116

1.4.37.116

śatadrūcandrabhāgādyā ṛkṣaparvatasaṃbhavāḥ..
ṛṣikulyākumāryādyāḥ śuktimatpādasaṃbhavāḥ.. 39.116 ..

those beginning with Śatadrū and Candrabhāgā arise from the Ṛkṣa mountain; / those beginning with Ṛṣikulyā and Kumārī arise from the foothills of Śuktimat;