Mentioning the differences in the reports from Muhammad bin Abi Yaqub in the Hadith of Abi Umamah About The Virtue Of Fasting
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ، عَنْ سَعِيدِ بْنِ أَبِي هِنْدٍ، أَنَّ مُطَرِّفًا، - رَجُلٌ مِنْ بَنِي عَامِرِ بْنِ صَعْصَعَةَ - حَدَّثَهُ أَنَّ عُثْمَانَ بْنَ أَبِي الْعَاصِ دَعَا لَهُ بِلَبَنٍ لِيَسْقِيَهُ فَقَالَ مُطَرِّفٌ إِنِّي صَائِمٌ فَقَالَ عُثْمَانُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " الصِّيَامُ جُنَّةٌ كَجُنَّةِ أَحَدِكُمْ مِنَ الْقِتَالِ " .
It was narrated from Saeed bin Abi Hind that Mutarrif a man from Banu 'Amir bin Sa'sa'ah told him that: 'Uthman bin Abi Al-As called for milk to be given to him (Mutarrif) to drink. Mutarrif said: 'I heard the Messenger of Allah (ﷺ) say: 'Fasting is a shield like the shield of any one of you in battle."' Abu Hurairah said: "The Messenger of Allah (ﷺ) said: 'Fasting is a shield."' (Sahih