The scent of the faster
وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ، لَخُلُوفُ فَمِ الصَّائِمِ أَطْيَبُ عِنْدَ اللَّهِ مِنْ رِيحِ الْمِسْكِ
Wa-lladhi nafsu Muhammadin bi-yadih, la-khulufu fami-s-sa'imi atyabu inda-llahi min rihi-l-misk.
"By the One in whose hand is the soul of Muhammad, the breath of the fasting person is more pleasant to Allah than the scent of musk."
Narrated by Abu Hurayrah. Sahih al-Bukhari 1894, Sahih Muslim 1151
A short reflection
What dunya finds offensive about the fasting mouth, Allah finds beautiful. The hidden act becomes the most beloved.