Ramayana
कौबेरेण तु भागेन वित्तमासां ददौ तदा । यस्तु याम्यो ऽभवद्भागस्तेन शास्ति स्म स प्रजाः ॥ 7-76-45 ॥
By the portion of Kubera he then bestowed wealth upon those creatures; and that portion which belonged to Yama — by it he rules the creatures.
english translation