رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1716
The Book of the Prohibited actions
Desirability of Expiating the Oath taken by a Person who afterwards Breaks it for a better Alternative
وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ قَالَ: مَنْ حَلَفَ عَلَى يَمِينٍ، فَرَأَى غَيْرَهَا خَيْرًا مِنْهَا، فَلْيُكَفِّرْ عَنْ يَمِينِهِ، وَلْيَفْعَلْ الذي هو خير ((رَوَاهُ مُسْلِم)).
Abu Hurairah (May Allah be pleased with him) said: The Messenger of Allah (ﷺ) said, "When you swear an oath and consider something else to be better than it, make expiation for your oath and do the thing that is better." [Muslim].
Riyad as-Salihin, 1716