Hadith 11:76
Waki’ narrated to us, [he said] Rabi’ ibn Sabih narrated to us, from Yazid ibn Aban, from Anas ibn Malik, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "Whoever fasts one day in the way of Allah, Allah will distance him from Hell by a year."
حدثنا وكيع نا ربيع بن صبيح عن يزيد بن ابان عن أنس بن مالك قال قال رسول الله صلى الله عليه وسلم من صام يوما في سبيل الله باعده الله من جهنم عاما