Sahih al-Bukhari, Book 30, Hadith 56 (In-Book) ⓘ
Narrated Nafi`: Ibn `Umar recited the verse: "They had a choice either to fast or to feed a poor person for every day, and said that the order of this Verse was canceled.
حَدَّثَنَا عَيَّاشٌ، حَدَّثَنَا عَبْدُ الأَعْلَى، حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ قَرَأَ فِدْيَةٌ طَعَامُ مَسَاكِينَ. قَالَ هِيَ مَنْسُوخَةٌ.
also referenced under: Hadith 1949 (DarusSalam) & Volume 3, Book 31, Hadith 170 (USC-MSA)