Imam ‘Abd al-Rahman al-Sa’di dedicated a chapter of his book of thematic tafsir to the subject of oaths, in which he first brought these ayaat and then explained them and their related issues as follows:
فصل في الأيمان ونحوها
Chapter on Oaths and related matters
يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تُحَرِّمُوا طَيِّبَاتِ مَا أَحَلَّ اللَّـهُ لَكُمْ وَلَا تَعْتَدُوا ۚ إِنَّ اللَّـهَ لَا يُحِبُّ الْمُعْتَدِينَ * وَكُلُوا مِمَّا رَزَقَكُمُ اللَّـهُ حَلَالًا طَيِّبًا ۚ وَاتَّقُوا اللَّـهَ الَّذِي أَنتُم بِهِ مُؤْمِنُونَ * لَا يُؤَاخِذُكُمُ اللَّـهُ بِاللَّغْوِ فِي أَيْمَانِكُمْ وَلَـٰكِن يُؤَاخِذُكُم بِمَا عَقَّدتُّمُ الْأَيْمَانَ ۖ فَكَفَّارَتُهُ إِطْعَامُ عَشَرَةِ مَسَاكِينَ مِنْ أَوْسَطِ مَا تُطْعِمُونَ أَهْلِيكُمْ أَوْ كِسْوَتُهُمْ أَوْ تَحْرِيرُ رَقَبَةٍ ۖ فَمَن لَّمْ يَجِدْ فَصِيَامُ ثَلَاثَةِ أَيَّامٍ ۚ ذَٰلِكَ كَفَّارَةُ أَيْمَانِكُمْ إِذَا حَلَفْتُمْ ۚ وَاحْفَظُوا أَيْمَانَكُمْ ۚ كَذَٰلِكَ يُبَيِّنُ اللَّـهُ لَكُمْ آيَاتِهِ لَعَلَّكُمْ تَشْكُرُونَ
O you who have believed, do not prohibit the good things which Allah has made lawful to you and do not transgress. Indeed, Allah does not like transgressors. * And eat of what Allah has provided for you [which is] halaal (lawful) and tayyib (good). And have taqwa of Allah, in whom you are believers. * Allah will not impose blame upon you for what is meaningless in your oaths, but He will impose blame upon you for [breaking] what you intended of oaths. So its expiation is the feeding of ten needy people from the average of that which you feed your [own] families or clothing them or the freeing of a slave. But whoever cannot find [or afford it] – then a fast of three days [is required]. That is the expiation for oaths when you have sworn. But protect your oaths. Thus does Allah make clear to you His verses that you may be grateful. [5:87-89]
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