Shiva Purana
प्रक्षाल्य ल्लिंगम्वेदीञ्च वस्त्रपूतैर्जलैस्ततः ॥ निःक्षिप्य पुष्पं शिरसि लिंगस्य प्रणवेन तु ॥ ३५॥
Then he washed the lingam and the altar with water cleansed with clothes Throwing flowers on the head of the Linga with the oṁkāra.
english translation
prakSAlya lliMgamvedIJca vastrapUtairjalaistataH ॥ niHkSipya puSpaM zirasi liMgasya praNavena tu ॥ 35॥
hk transliteration by Sanscript