Shiva Purana
आदित्यं पूजयित्वा तु ब्राह्मणान्भोजयेत्ततः । दिनं मासं तथा वर्षं वर्षत्रयमथवापि वा २६ ।
In the ailments of the eyes or head or for quelling leprosy, the sun shall be worshipped and the brahmins fed for a day, a month, a year or three years.
english translation
AdityaM pUjayitvA tu brAhmaNAnbhojayettataH । dinaM mAsaM tathA varSaM varSatrayamathavApi vA 26 ।
hk transliteration by Sanscript