Shiva Purana
शिरोभागस्वरूपेण शिवलिंगं तदस्ति हि ॥ तत्कथां वर्णयिष्यामि केदारेश्वरवर्णने ॥ १९ ॥
That phallic image is in the form of the crest. I shall narrate the story in the description of Kedāreśvara.
english translation
zirobhAgasvarUpeNa zivaliMgaM tadasti hi ॥ tatkathAM varNayiSyAmi kedArezvaravarNane ॥ 19 ॥
hk transliteration by Sanscript