Shiva Purana
कल्पलक्षणसंयुक्तं लिंगं पूजाफलं लभेत् । सर्वलक्षणसंयुक्तं सद्यः पूजाफलप्रदम् ४ ।
If it has all the characteristics mentioned in the sacred texts, the devotee derives the fruit of worship. If it has all characteristics, it accords the fruit of worship instantaneously.
english translation
kalpalakSaNasaMyuktaM liMgaM pUjAphalaM labhet । sarvalakSaNasaMyuktaM sadyaH pUjAphalapradam 4 ।
hk transliteration by Sanscript