FAST ACCORDING TO QURAN AND SUNNAH

Saum Fasting is the third pillar of Islam,

The Prophet sall Allaahu ‘alayhi wasallam said, “(Allah said), ‘every good deed of the son of Adam is for him except fasting; it is for Me. and I shall reward (the fasting person) for it.’ Verily, the smell of the mouth of a fasting person is better to Allah than the smell of musk.” [Bukhari]