The Book of Oaths and Vows
35/16. Chapter:
Expiation After Breaking An Oath
Sunan an-Nasai
أَخْبَرَنَا عَمْرُو بْنُ يَزِيدَ، قَالَ حَدَّثَنَا بَهْزُ بْنُ أَسَدٍ، قَالَ حَدَّثَنَا شُعْبَةُ، قَالَ أَخْبَرَنِي عَبْدُ الْعَزِيزِ بْنُ رُفَيْعٍ، قَالَ سَمِعْتُ تَمِيمَ بْنَ طَرَفَةَ، يُحَدِّثُ عَنْ عَدِيِّ بْنِ حَاتِمٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ حَلَفَ عَلَى يَمِينٍ فَرَأَى خَيْرًا مِنْهَا فَلْيَأْتِ الَّذِي هُوَ خَيْرٌ وَلْيَتْرُكْ يَمِينَهُ " .
It was narrated that 'Adiyy bin Hatim said: "The Messenger of Allah said: 'Whoever swears an oath, then sees something better than it, let him do that which is better and leave his oath.'"
Reference : Sunan an-Nasa'i 3787In-book reference : Book 35, Hadith 27English translation : Vol. 4, Book 35, Hadith 3818