Shiva Purana
शिवस्य च शिवायाश्च शिखामूर्तिशिवाश्रिते ॥ सत्कृत्य शिवयोराज्ञां ते मे कामं प्रयच्छताम् ॥ ४३ ॥
May the two tuft-forms of Śiva and Śivā, depending on Śiva, grant my desire after honouring the behest of the two.
english translation
zivasya ca zivAyAzca zikhAmUrtizivAzrite ॥ satkRtya zivayorAjJAM te me kAmaM prayacchatAm ॥ 43 ॥
hk transliteration by Sanscript