Shiva Purana
श्रीगोकर्णे शिवतिथावुपोष्य शिवमस्तके ॥ कृत्वा जागरणं सा हि चक्रे बिल्वार्चनं निशि ॥ ३५ ॥
At Gokarṇa on Śiva’s Tithi during the night she had kept awake and observed fast. She had performed the worship of Śiva’s image with Bilva bunch.
english translation
zrIgokarNe zivatithAvupoSya zivamastake ॥ kRtvA jAgaraNaM sA hi cakre bilvArcanaM nizi ॥ 35 ॥
hk transliteration by Sanscript