Sahih Muslim 1650c
Abu Huraira reported Messenger of Allah ﷺ as saying: He who took an oath and (later on) found another thing better than that, he should do that which is better, and expiate for the vow (broken by him).
وَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا ابْنُ أَبِي أُوَيْسٍ، حَدَّثَنِي عَبْدُ الْعَزِيزِ بْنُ الْمُطَّلِبِ، عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ﷺ
" مَنْ حَلَفَ عَلَى يَمِينٍ فَرَأَى غَيْرَهَا خَيْرًا مِنْهَا فَلْيَأْتِ الَّذِي هُوَ خَيْرٌ وَلْيُكَفِّرْ عَنْ يَمِينِهِ " .
Classification
Sahih (Authentic)
References
Sahih Muslim 1650c
Sahih Muslim Vol. 4, Book of Oaths, Hadith 4054