Sahih Muslim Book - 13, Hadith - 2673

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ حَدَّثَنَا جَرِيرٌ عَنْ عَبْدِ الْمَلِكِ - وَهُوَ ابْنُ عُمَيْرٍ - عَنْ قَزَعَةَ عَنْ أَبِى سَعِيدٍ - رضى الله عنه - قَالَ سَمِعْتُ مِنْهُ حَدِيثًا فَأَعْجَبَنِى فَقُلْتُ لَهُ آنْتَ سَمِعْتَ هَذَا مِنْ رَسُولِ اللَّهِ -صلى الله عليه وسلم- قَالَ فَأَقُولُ عَلَى رَسُولِ اللَّهِ -صلى الله عليه وسلم- مَا لَمْ أَسْمَعْ قَالَ سَمِعْتُهُ يَقُولُ « لاَ يَصْلُحُ الصِّيَامُ فِى يَوْمَيْنِ يَوْمِ الأَضْحَى وَيَوْمِ الْفِطْرِ مِنْ رَمَضَانَ ».

It was narrated that Qazah said, concerning Abu Saeed Al-Khudri [may Allah be please with them]: “I heard a Hadith from him that impressed me, so I said to him: ‘Did you hear this from the Messenger of Allah? He said: ‘Would I attribute to the Messenger of Allah something that I did not hear?’ He said: ‘I heard him say: “Fasting is not good on two days: The day of Al-Adha and the day of Al-Fitr (breaking the fast) after Ramadan.”