Shiva Purana
इति श्रुत्वा कार्तिकेयो वामदेववचः स्मरन्॥ शिवं शिवां च मनसा व्याचष्टुमुपचक्रमे ॥ १०॥
Subrahmaṇya said:— On hearing the words of Vāmadeva Kārttikeya began to explain after thinking upon Śiva and Śivā.
english translation
iti zrutvA kArtikeyo vAmadevavacaH smaran॥ zivaM zivAM ca manasA vyAcaSTumupacakrame ॥ 10॥
hk transliteration by Sanscript