It wasnarrated from Abu Hurairah that the Messenger of Allah (ﷺ)said:
"Whoever fasts one day for the sake of Allah, Allah will movehisface away from the Fire a distance of seventy autumns (years)." (TR)
English reference (TR): Vol. 1, Book 7, Hadith 1718 (TR)
Arabic reference (TR): Book 7, Hadith 1789 (TR)