Shiva Purana
नन्दीश्वर उवाच ॥ इत्युक्त्वा ब्रह्मचारी स शंकरो भक्तवत्सलः ॥ । तस्थिवानुपकण्ठं स गोपायन्रूपमात्मनः ॥ १९ ॥
Nandīśvara said:— After saying this, the bachelor Śiva, who is favourably disposed to his devotees, stood near her concealing his real form.
english translation
nandIzvara uvAca ॥ ityuktvA brahmacArI sa zaMkaro bhaktavatsalaH ॥ । tasthivAnupakaNThaM sa gopAyanrUpamAtmanaH ॥ 19 ॥
hk transliteration by Sanscript