حَدَّثَنَا أَبُو سَعِيدٍ، حَدَّثَنَا ابْنُ لَهِيعَةَ، حَدَّثَنَا بُكَيْرٌ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ عُمَرَ، قَالَ غَزَوْنَا مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي رَمَضَانَ وَالْفَتْحَ فِي رَمَضَانَ فَأَفْطَرْنَا فِيهِمَا‏.‏

It was narrated that ‘Umar said

We went on a campaign with the Messenger of Allah ﷺ during Ramadan and the conquest took place in Ramadan, and we broke the fast in both cases.