If anyone fasts a day for the sake of Allah, Allah shall keep his face away from Hell (the distance of) seventy years. [Al-Bukhari]
"«من صام يومًا في سبيل الله بَعَّدَ الله وجهه عن النَّار سَبْعِين خريفا». [صحيح.] - [متفق عليه.]"
