Shiva Purana
प्रत्यक्षरं तु गायत्रीपुरश्चर्य्याफलं लभेत् । इह भुक्त्वाखिलान्कामानं ते निर्वाणतां व्रजेत् २८ ।
He shall derive the benefit of the repetition of Gāyatrī syllable by syllable. He will enjoy all worldly pleasures here and attain salvation hereafter.
english translation
pratyakSaraM tu gAyatrIpurazcaryyAphalaM labhet । iha bhuktvAkhilAnkAmAnaM te nirvANatAM vrajet 28 ।
hk transliteration by Sanscript