Somavaṃśa-prasavaḥ
Birth of the Lunar Line: Budha–Purūravas and the Urvaśī Episode
कुशपुत्रा बभूवुश्च चत्वारो देववर्चसः / कुशांबः कुशानाभश्च अमूर्तरयमो वसुः
kuśaputrā babhūvuśca catvāro devavarcasaḥ / kuśāṃbaḥ kuśānābhaśca amūrtarayamo vasuḥ
Kuśa hatte vier Söhne, strahlend wie die Götter: Kuśāṃba, Kuśānābha, Amūrtarayama und Vasu.