question #3 Sahih al-Bukhari 5927, Book 77, Hadith 142 : How does fasting hold a unique position among the acts of worship in Islam?

The Prophet (ﷺ) said, “(Allah said), ‘Every good deed of Adam’s son 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.”