صحيح البخاري Sahih Bukhari كتاب تفسير القرآن The Book of Commentary
بَابُ: {فَمَنْ شَهِدَ مِنْكُمُ الشَّهْرَ فَلْيَصُمْهُ} :

(26) Chapter. “So whoever of you sights (the crescent on the first night of) the month (of Ramadan, i.e., is present at his home), he must observe Saum (fast) that month...” (V.2:185)

2 hadith
Hadith 4506
حَدَّثَنَا عَيَّاشُ بْنُ الْوَلِيدِ , حَدَّثَنَا عَبْدُ الْأَعْلَى , حَدَّثَنَا عُبَيْدُ اللَّهِ , عَنْ نَافِعٍ , عَنْ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا : " أَنَّهُ قَرَأَ : 0 فِدْيَةٌ طَعَامُ مَسَاكِينَ 0 , قَالَ : هِيَ مَنْسُوخَةٌ " .
Narrated Nafi`: Ibn `Umar recited: "They had a choice, either fast or feed a poor for every day.." and added, "This Verse is abrogated."
Hadith Reference Sahih Bukhari / The Book of Commentary / Hadith: 4506
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 4507
حَدَّثَنَا قُتَيْبَةُ , حَدَّثَنَا بَكْرُ بْنُ مُضَرَ , عَنْ عَمْرِو بْنِ الْحَارِثِ , عَنْ بُكَيْرِ بْنِ عَبْدِ اللَّهِ , عَنْ يَزِيدَ مَوْلَى سَلَمَةَ بْنِ الْأَكْوَعِ , عَنْ سَلَمَةَ , قَالَ :لَمَّا نَزَلَتْ وَعَلَى الَّذِينَ يُطِيقُونَهُ فِدْيَةٌ طَعَامُ مِسْكِينٍ سورة البقرة آية 184 كَانَ مَنْ أَرَادَ أَنْ يُفْطِرَ وَيَفْتَدِيَ حَتَّى نَزَلَتِ الْآيَةُ الَّتِي بَعْدَهَا فَنَسَخَتْهَا , قَالَ أَبُو عَبْد اللَّهِ : مَاتَ بُكَيْرٌ , قَبْلَ يَزِيدَ .
Narrated Salama: When the Divine Revelation: "For those who can fast, they had a choice either fast, or feed a poor for every day," (2.184) was revealed, it was permissible for one to give a ransom and give up fasting, till the Verse succeeding it was revealed and abrogated it.
Hadith Reference Sahih Bukhari / The Book of Commentary / Hadith: 4507
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة