Shiva Purana
ऋष्यशृङ्गोऽथ दुर्व्वासाश्शुचिर्नारद तुम्बुरुः ॥ उत्तंको वामदेवश्च पवनोऽसितदेवलौ ॥ १८॥
Then came Rishyasringa Durvasa Shuchi Narada and Tumburu Uttanka and Vamadeva are the two sons of Pavana and Asitadevala.
english translation
RSyazRGgo'tha durvvAsAzzucirnArada tumburuH ॥ uttaMko vAmadevazca pavano'sitadevalau ॥ 18॥
hk transliteration by Sanscript