The Messenger of Allah ﷺ said, "Allah says, 'Fasting is for Me, and I Myself reward it.' The one who fasts has two moments of joy. When he breaks his fast, he rejoices, and when he meets Allah, he rejoices. By the One in whose hand is the soul of Muhammad, the breath of the fasting person is more fragrant to Allah than the scent of musk."
قال رسول الله ﷺ: إن الله عز وجل يقول: إن الصوم لي وأنا أجزي به، إن للصائم فرحتين. إذا أفطر فرح، وإذا لقي الله فرح، والذي نفس محمد بيده لخلوف فم الصائم أطيب عند الله من ريح المسك.
Muslim narrated it in the Book of Fasting (1151:165) from Abu Bakr bin Abu Shayba, who said, Muhammad bin Fudayl narrated to us, from Abu Sinan, from Abu Salih, from Abu Hurairah and Abu Saeed, and he related it.Nasai narrated it (2213) from Ali bin Harb, from Muhammad bin Fudayl with his chain, from Abu Saeed alone.As for what has been narrated from Abu Hurairah, who said that the Messenger of Allah said, "My nation has been given five qualities in Ramadan that no nation before them was given. The bad breath of the fasting person is more pleasing to Allah than the scent of musk, the angels ask forgiveness for them until they break their fast, Allah adorns His paradise every day and then says, 'My righteous servants are about to cast off their burdens and hardships and come to you,' the rebellious devils are shackled during it so they cannot reach what they used to reach at other times, and they are forgiven on its last night." It was said, "Messenger of Allah, is that Laylat al-Qadr?" He said, "No, but the worker is only paid his wage in full when he completes his work." This hadith is daif.It was narrated by Imam Ahmad (7917) and by Bazzar in Kashf Astar (963), both from the hadith of Yazid bin Harun, who said, Hisham bin Abu Hisham narrated to us, from Muhammad bin Muhammad bin Aswad, from Abu Salama bin Abdul-Rahman, from Abu Hurairah, and he related the hadith.Hisham bin Abu Hisham is Hisham bin Ziyad bin Abu Yazid, Abu Miqdam, also known as Hisham bin Abu Walid Madani. He is daif by the agreement of the scholars. Nasai said, "Discarded." Ibn Hibban said, "He narrates fabrications from reliable narrators, so it is not permissible to rely on him."As for Muhammad bin Muhammad bin Aswad, no one narrated from him except Hisham bin Abu Hisham. Hafiz said in Taqrib, "Obscure."