Shiva Purana
द्वादशांतस्स्थविशदे सहस्रारमहाम्बुजे ॥ चिच्चन्द्रमण्डलान्तस्थं चिद्रूपं परमेश्वरम् ॥ ५३ ॥
He shall meditate on the supreme god of the form of cit in the middle of lunar sphere of cit within the great lotus of thousand petals, full-blown and stationed in the twelve.
english translation
dvAdazAMtassthavizade sahasrAramahAmbuje ॥ ciccandramaNDalAntasthaM cidrUpaM paramezvaram ॥ 53 ॥
hk transliteration by Sanscript