Shiva Purana
अबिस्रब्धो न कुर्वीत कर्म दृष्टफलं क्वचित् ॥ स खल्वश्रद्धधानः स्यान्नाश्रद्धः फलमृच्छति ॥ ७ ॥
Without faith and devotion no one shall perform the rite intended to yield direct benefit. He becomes an unbeliever and an unbeliever does not attain fruit.
english translation
abisrabdho na kurvIta karma dRSTaphalaM kvacit ॥ sa khalvazraddhadhAnaH syAnnAzraddhaH phalamRcchati ॥ 7 ॥
hk transliteration by Sanscript