Shiva Purana
यथोक्तमेव कर्मैतदाचरेद्यो ऽनपायतः ॥ फलं व्यभिचरेन्नैवमित्यतः किं प्ररोचकम् ॥ ७३ ॥
If he performs the rite as ordained he cannot but have the benefit. What other inducement for worship shall there be?
english translation
yathoktameva karmaitadAcaredyo 'napAyataH ॥ phalaM vyabhicarennaivamityataH kiM prarocakam ॥ 73 ॥
hk transliteration by Sanscript