Shiva Purana
भानुवारे सहस्राणां गायत्रीपूतचेतसाम् । अन्नं दत्त्वा सत्यलोके ह्यारोग्यादि समश्नुते ३४ ।
By giving food to a thousand brahmins whose minds have been purified by Gāyatrī, on Sunday, the devotee attains good health and other benefits in Satyaloka.
english translation
bhAnuvAre sahasrANAM gAyatrIpUtacetasAm । annaM dattvA satyaloke hyArogyAdi samaznute 34 ।
hk transliteration by Sanscript