Aśija (Asija) is the son born of the womb of Svarāṭ (Swarat), daughter of Kardama Prajāpati (Prajapati; Ruler of the people), and sired by Maharṣi (Maharshi; Great Sage) Aṅgirā (Angira). Somewhere he is mentioned as Uśija (Usija) , and elsewhere as Aśija (Asija). He is the brother of Vṛhaspati (Vrihaspati). In Vāyupurāṇa (Vayupurana), Mamatā (Mamata), mother of Sage Dīrghatamā (Dirghatama), is referred to as the wife of this Uśija and Aśija.