Shiva Purana
अथ गोमयमादाय पिण्डीकृत्याभिमंत्र्य च ॥ विन्यस्याग्नौ च सम्प्रोक्ष्य दिने तस्मिन्हविष्यभुक् ॥ १७ ॥
He shall collect cowdung and roll it into balls and repeat the mantras over them. He shall place these into the fire and sprinkle with water. That day he shall take in only the cooked rice soaked in ghee.
english translation
atha gomayamAdAya piNDIkRtyAbhimaMtrya ca ॥ vinyasyAgnau ca samprokSya dine tasminhaviSyabhuk ॥ 17 ॥
hk transliteration by Sanscript