Shiva Purana
अभवन्दनुपुत्राश्च शतं तीव्रपराक्रमाः ॥ अयोमुखश्शंबरश्च कपोलो वामनस्तथा॥ २६॥
He had one hundred sons who were very valiant Ayomukha Shambara Kapola and Vamana.
english translation
abhavandanuputrAzca zataM tIvraparAkramAH ॥ ayomukhazzaMbarazca kapolo vAmanastathA॥ 26॥
hk transliteration by Sanscript