Matsyapurana 50.20

50.20

ṛkṣātsaṃvaraṇo jajñe kuruḥ saṃvaraṇāt tataḥ
yaḥ prayāgamatikramya kurukṣetramakalpayat //

Ajamîḍha then enjoyed himself with Dhûminî, when she begot smoke colored Ṛikṣa, the valiant. Ṛikṣa begot Saṃvaraṇa, the father of Kuru, who forsaking Prayâga, built up Kurukṣetra. He practised long asceticism to call Indra, who at last appeared before him out of fear and granted him a boon.—15-21.