The Harivamsa, an appendix of the Mahabharata, makes Kashyapa and Surabhi – here, portrayed as his wife – the parents of the Rudras.Hopkins p. 173 In another instance in the Mahabharata, it is Dharma (possibly identified with Yama) who is the father of the Rudras and the Maruts.
the harivamsa an appendix of the mahabharata makes kashyapa and surabhi – here portrayed as his wife – the parents of the rudrashopkins p 173 in another instance in the mahabharata it is dharma (possibly identified with yama) who is the father of the rudras and the maruts