Shiva Purana
देवप्रयागतीर्थे तु ललितेश्वरनामकम्॥ शिवलिंगं सदा पूज्यं नरैस्सर्वाघनाशनम् ॥ १७ ॥
Laliteśvara, the phallic image of Śiva in the holy centre Devaprayāga should be worshipped by men. It is destructive of all sins.
english translation
devaprayAgatIrthe tu lalitezvaranAmakam॥ zivaliMgaM sadA pUjyaM naraissarvAghanAzanam ॥ 17 ॥
hk transliteration by Sanscript