Shiva Purana
शतमष्टोत्तरं मन्त्रं पठित्वा जलधारया ॥ पूजयेच्च शिवं तत्र निर्गुणं गुणरूपिणम् ॥ ५० ॥
He shall worship Śiva, both Nirguṇa and Saguṇa, by the steady pouring of water, reciting the 108 mantras.
english translation
zatamaSTottaraM mantraM paThitvA jaladhArayA ॥ pUjayecca zivaM tatra nirguNaM guNarUpiNam ॥ 50 ॥
hk transliteration by Sanscript