He begot a son on his wife Sarayu named Siddhi and covered the Sun with his splendour. As he is the presiding genius of fire, he is always mentioned in all fire hymn.
सरय्वां जनयत् सिद्धिं भानु भाभिः समावृणोत्। आग्नेयमानयन् नित्यमाह्वाने ह्येष सूयते॥