Shiva Purana
मूर्तिम्प्रकल्प्य तत्रैव गणानां त्वेति मंत्रतः ॥ समावाह्य ततो देवं ध्यायेदेका ग्रमानसः ॥ १५ ॥
He placed the idol there and chanted the mantra Tve of the hosts. Then one should invoke the Lord and meditate on Him with a concentrated mind.
english translation
mUrtimprakalpya tatraiva gaNAnAM tveti maMtrataH ॥ samAvAhya tato devaM dhyAyedekA gramAnasaH ॥ 15 ॥
hk transliteration by Sanscript