Arabic (Original)
حَدَّثَنَا وَكِيعٌ حَدَّثَنَا ابْنُ عَوْنٍ عَنْ زِيَادِ بْنِ جُبَيْرٍ أَنَّ رَجُلًا سَأَلَ ابْنَ عُمَرَ عَنْ رَجُلٍ نَذَرَ أَنْ يَصُومَ يَوْمًا فَوَافَقَ يَوْمَئِذٍ عِيدَ أَضْحَى أَوْ يَوْمَ فِطْرٍ فَقَالَ ابْنُ عُمَرَ أَمَرَ اللَّهُ بِوَفَاءِ النَّذْرِ وَنَهَانَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ صَوْمِ هَذَا الْيَوْمِ.
English Translation
Waki' narrated to us: Ibn 'Awn narrated to us, from Ziyad ibn Jubayr, that a man asked Ibn 'Umar about a man who had vowed to fast a day, and that day happened to coincide with the festival of sacrifice or the day of breaking the fast. Ibn 'Umar said: 'Allah has commanded the fulfillment of vows, but the Messenger of Allah, peace and blessings be upon him, forbade us from fasting on this day.'