Messenger of Allah ﷺ said, "Whoever takes a false oath so as to take the property of a Muslim (illegally) will meet Allah while He will be angry with him." Al-Ash'ath said: By Allah, that saying concerned me. I had common land with a Jew, and the Jew later on denied my ownership, so I took him to the Prophet who asked me whether I had a proof of my ownership. When I replied in the negative, the Prophet asked the Jew to take an oath. I said, "O Messenger of Allah ﷺ! He will take an oath and deprive me of my property." So, Allah revealed the following verse: "Verily! Those who purchase a little gain at the cost of Allah's covenant and their oaths." (3.77)  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ حَلَفَ عَلَى يَمِينٍ وَهْوَ فِيهَا فَاجِرٌ لِيَقْتَطِعَ بِهَا مَالَ امْرِئٍ مُسْلِمٍ لَقِيَ اللَّهَ وَهْوَ عَلَيْهِ غَضْبَانُ قَالَ فَقَالَ الأَشْعَثُ فِيَّ وَاللَّهِ كَانَ ذَلِكَ كَانَ بَيْنِي وَبَيْنَ رَجُلٍ مِنَ الْيَهُودِ أَرْضٌ فَجَحَدَنِي فَقَدَّمْتُهُ إِلَى النَّبِيِّ ﷺ فَقَالَ لِي رَسُولُ اللَّهِ ﷺ أَلَكَ بَيِّنَةٌ قُلْتُ لاَ قَالَ فَقَالَ لِلْيَهُودِيِّ احْلِفْ قَالَ قُلْتُ يَا رَسُولَ اللَّهِ إِذًا يَحْلِفَ وَيَذْهَبَ بِمَالِي فَأَنْزَلَ اللَّهُ تَعَالَى {إِنَّ الَّذِينَ يَشْتَرُونَ بِعَهْدِ اللَّهِ وَأَيْمَانِهِمْ ثَمَنًا قَلِيلاً} إِلَى آخِرِ الآيَةِ  

Kaʿb demanded his debt back from Ibn Abi Hadrad in the Mosque and their voices grew louder till Messenger of Allah ﷺ heard them while he was in his house. He came out to them raising the curtain of his room and addressed Kaʿb, "O Kaʿb!" Kaʿb replied, "Labaik, O Messenger of Allah ﷺ." (He said to him), "Reduce your debt to one half," gesturing with his hand. Kaʿb said, "I have done so, O Allah's Apostle!" On that the Prophet ﷺ said to Ibn Abi Hadrad, "Get up and repay the debt, to him."  

أَنَّهُ تَقَاضَى ابْنَ أَبِي حَدْرَدٍ دَيْنًا كَانَ لَهُ عَلَيْهِ فِي الْمَسْجِدِ فَارْتَفَعَتْ أَصْوَاتُهُمَا حَتَّى سَمِعَهَا رَسُولُ اللَّهِ ﷺ وَهْوَ فِي بَيْتِهِ فَخَرَجَ إِلَيْهِمَا حَتَّى كَشَفَ سِجْفَ حُجْرَتِهِ فَنَادَى يَا كَعْبُ قَالَ لَبَّيْكَ يَا رَسُولَ اللَّهِ قَالَ ضَعْ مِنْ دَيْنِكَ هَذَا فَأَوْمَأَ إِلَيْهِ أَىِ الشَّطْرَ قَالَ لَقَدْ فَعَلْتُ يَا رَسُولَ اللَّهِ قَالَ قُمْ فَاقْضِهِ  

I heard Hisham bin Hakim bin Hizam reciting Surat-al-Furqan in a way different to that of mine. Messenger of Allah ﷺ had taught it to me (in a different way). So, I was about to quarrel with him (during the prayer) but I waited till he finished, then I tied his garment round his neck and seized him by it and brought him to Messenger of Allah ﷺ and said, "I have heard him reciting Surat-al-Furqan in a way different to the way you taught it to me." The Prophet ﷺ ordered me to release him and asked Hisham to recite it. When he recited it, Allah s Apostle said, "It was revealed in this way." He then asked me to recite it. When I recited it, he said, "It was revealed in this way. The Qur'an has been revealed in seven different ways, so recite it in the way that is easier for you."  

سَمِعْتُ هِشَامَ بْنَ حَكِيمِ بْنِ حِزَامٍ يَقْرَأُ سُورَةَ الْفُرْقَانِ عَلَى غَيْرِ مَا أَقْرَؤُهَا وَكَانَ رَسُولُ اللَّهِ ﷺ أَقْرَأَنِيهَا وَكِدْتُ أَنْ أَعْجَلَ عَلَيْهِ ثُمَّ أَمْهَلْتُهُ حَتَّى انْصَرَفَ ثُمَّ لَبَّبْتُهُ بِرِدَائِهِ فَجِئْتُ بِهِ رَسُولَ اللَّهِ ﷺ فَقُلْتُ إِنِّي سَمِعْتُ هَذَا يَقْرَأُ عَلَى غَيْرِ مَا أَقْرَأْتَنِيهَا فَقَالَ لِي أَرْسِلْهُ ثُمَّ قَالَ لَهُ اقْرَأْ فَقَرَأَ قَالَ هَكَذَا أُنْزِلَتْ ثُمَّ قَالَ لِي اقْرَأْ فَقَرَأْتُ فَقَالَ هَكَذَا أُنْزِلَتْ إِنَّ الْقُرْآنَ أُنْزِلَ عَلَى سَبْعَةِ أَحْرُفٍ فَاقْرَءُوا مِنْهُ مَا تَيَسَّرَ