224وَلَا تَجْعَلُوا۟ ٱللَّهَ عُرْضَةً لِّأَيْمَـٰنِكُمْ أَن تَبَرُّوا۟ وَتَتَّقُوا۟ وَتُصْلِحُوا۟ بَيْنَ ٱلنَّاسِ ۗ وَٱللَّهُ سَمِيعٌ عَلِيمٌ
225لَّا يُؤَاخِذُكُمُ ٱللَّهُ بِٱللَّغْوِ فِىٓ أَيْمَـٰنِكُمْ وَلَـٰكِن يُؤَاخِذُكُم بِمَا كَسَبَتْ قُلُوبُكُمْ ۗ وَٱللَّهُ غَفُورٌ حَلِيمٌ
[224-225] Do not use Allah's name for such oaths which are taken to keep back from virtue, piety and the welfare of mankind:243 Allah hears everything you utter and knows everything. Allah does not call you to Account for unintentional and meaningless oaths,244 but will surely take you to task for oaths taken deliberately and in earnest : Allah is Forgiving and Forbearing.
243We learn from authentic Traditions that if anyone takes a thoughtless oath to do or not to do a thing and afterwards realizes that fairness demands its abrogation, he should abrogate it and expiate for it. The expiation for breaking an oath is the feeding of ten needy persons or clothing them or the liberation of a slave. If one cannot afford this, he must observe fast for three days. (Please see Al-Ma'idah, V : 89).
244There is neither expiation nor any punishment for those oaths that one utters unawares as a by word.