عَنْ سَعِيدِ بْنِ أَبِي هِنْدٍ أَنَّ مُطَرِّفًا رَجُلٌ مِنْ بَنِي عَامِرِ بْنِ صَعْصَعَةَ حَدَّثَهُ أَنَّ عُثْمَانَ بْنَ أَبِي الْعَاصِ الثَّقَفِيَّ رَضِيَ اللَّهُ عَنْهُ دَعَا لَهُ بِلَبَنٍ لِيَسْقِيَهُ، قَالَ مُطَرِّفٌ: إِنِّي صَائِمٌ، فَقَالَ عُثْمَانُ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَعَلَى آلِهِ وَصَحْبِهِ وَسَلَّمَ يَقُولُ: ((الصِّيَامُ جُنَّةٌ مِنَ النَّارِ كَجُنَّةِ أَحَدِكُمْ مِنَ الْقِتَالِ))
Saeed bin Abi Hind says: Mutarrif, a man from Banu Aamir, narrated that Sayyiduna Uthman bin Abi Al-Aas Thaqafi asked him to bring milk to drink, but Mutarrif said that he was fasting. So he (Uthman) said: I heard the Messenger of Allah (peace and blessings be upon him) say that fasting is a shield to protect from Hell, just as a man uses a shield in battle.