Sahih Bukhari Volume 6, Book 65, Hadith 4551

حَدَّثَنَا حَجَّاجُ بْنُ مِنْهَالٍ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنِ الأَعْمَشِ، عَنْ أَبِي وَائِلٍ، عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ ـ رضى الله عنه ـ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ مَنْ حَلَفَ يَمِينَ صَبْرٍ لِيَقْتَطِعَ بِهَا مَالَ امْرِئٍ مُسْلِمٍ، لَقِيَ اللَّهَ وَهْوَ عَلَيْهِ غَضْبَانُ ‏"‏‏.‏ فَأَنْزَلَ اللَّهُ تَصْدِيقَ ذَلِكَ ‏{‏إِنَّ الَّذِينَ يَشْتَرُونَ بِعَهْدِ اللَّهِ وَأَيْمَانِهِمْ ثَمَنًا قَلِيلاً أُولَئِكَ لاَ خَلاَقَ لَهُمْ فِي الآخِرَةِ‏}‏ إِلَى آخِرِ الآيَةِ‏.‏ ـ قَالَ فَدَخَلَ الأَشْعَثُ بْنُ قَيْسٍ وَقَالَ مَا يُحَدِّثُكُمْ أَبُو عَبْدِ الرَّحْمَنِ قُلْنَا كَذَا وَكَذَا‏.‏ قَالَ فِيَّ أُنْزِلَتْ كَانَتْ لِي بِئْرٌ فِي أَرْضِ ابْنِ عَمٍّ لِي قَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ بَيِّنَتُكَ أَوْ يَمِينُهُ ‏"‏ فَقُلْتُ إِذًا يَحْلِفَ يَا رَسُولَ اللَّهِ‏.‏ فَقَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ مَنْ حَلَفَ عَلَى يَمِينِ صَبْرٍ يَقْتَطِعُ بِهَا مَالَ امْرِئٍ مُسْلِمٍ وَهْوَ فِيهَا فَاجِرٌ، لَقِيَ اللَّهَ وَهْوَ عَلَيْهِ غَضْبَانٌ ‏"‏‏.‏

Narrated By Abu Wail : 'Abdullah bin Masud said, "Allah's Apostle said, 'Whoever takes an oath when asked to do so, in which he may deprive a Muslim of his property unlawfully, will meet Allah Who will be angry with him.' So Allah revealed in confirmation of this statement: "Verily! Those who Purchase a small gain at the cost of Allah's Covenant and oaths, they shall have no portion in the Hereafter..." (3.77) Then entered Al-Ash'ath bin Qais and said, "What is Abu 'Abdur-Rahman narrating to you?" We replied, 'So-and-so." Al-Ash'ath said, "This Verse was revealed in my connection. I had a well in the land of my cousin (and he denied my, possessing it). On that the Prophet said to me, 'Either you bring forward a proof or he (i.e. your cousin) takes an oath (to confirm his claim)' I said, 'I am sure he would take a (false) oath, O Allah's Apostle.' He said, 'If somebody takes an oath when asked to do so through which he may deprive a Muslim of his property (unlawfully) and he is a liar in his oath, he will meet Allah Who will be angry with him.'"