the breath of the fasting person is more pleasant with Allah...

The Prophet (صلى الله عليه و سلم) said:

 

“By the One in Whose Hand my soul is, the breath of the fasting person is more pleasant with Allah than the smell of musk.”

 

In ‘Fath al-Bari’ (4/138), Ibn Hajar commented:

 

“What can be gained from this is that the fasting person’s breath is better than the blood of a martyr. This is because the martyr’s blood was likened to the smell of musk,* while the fasting person’s breath was described as being even better than the smell of musk. And this doesn’t necessitate that fasting is better than shahadah, for obvious reasons…”

 

* In a hadith reported by al-Bukhari and Muslim