Shiva Purana
एवन्ध्यानम्पूजनं च कृत्वा सम्यग्विधानतः ॥ ममावरणपूजां च प्रारभेत विचक्षणः ॥ ८०॥
Thus meditating and worshiping in the proper manner. A wise man should also commence the worship of My covering.
english translation
evandhyAnampUjanaM ca kRtvA samyagvidhAnataH ॥ mamAvaraNapUjAM ca prArabheta vicakSaNaH ॥ 80॥
hk transliteration by Sanscript