Narrated Abdullah ibn Mas'ud:

The Messenger of Allah ﷺ said: He who swears an oath in which he tells a lie to take the property of a Muslim by unfair means, will meet Allah while He is angry with him.

Al-Ash'ath said: I swear by Allah, he said this about me. There was some land between me and a Jew, but he denied it to me; so I presented him to the Prophet ﷺ.

The Prophet ﷺ asked me: Have you any evidence? I replied: No. He said to the Jew: Take an oath. I said: Messenger of Allah, now he will take an oath and take my property. So Allah, the Exalted, revealed the verse, "As for those who sell the faith they owe to Allah and their own plighted word for a small price, they shall have no portion in the hereafter."

حَدَّثَنَا مُحَمَّدُ بْنُ عِيسَى، وَهَنَّادُ بْنُ السَّرِيِّ، - الْمَعْنَى - قَالاَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، حَدَّثَنَا الأَعْمَشُ، عَنْ شَقِيقٍ، عَنْ عَبْدِ اللَّهِ، قَالَ قَالَ رَسُولُ اللَّهِ ﷺ " مَنْ حَلَفَ عَلَى يَمِينٍ هُوَ فِيهَا فَاجِرٌ لِيَقْتَطِعَ بِهَا مَالَ امْرِئٍ مُسْلِمٍ لَقِيَ اللَّهَ وَهُوَ عَلَيْهِ غَضْبَانُ " . فَقَالَ الأَشْعَثُ فِيَّ وَاللَّهِ كَانَ ذَلِكَ كَانَ بَيْنِي وَبَيْنَ رَجُلٍ مِنَ الْيَهُودِ أَرْضٌ فَجَحَدَنِي فَقَدَّمْتُهُ إِلَى النَّبِيِّ ﷺ فَقَالَ لِيَ النَّبِيُّ ﷺ " أَلَكَ بَيِّنَةٌ " . قُلْتُ لاَ . قَالَ لِلْيَهُودِيِّ " احْلِفْ " . قُلْتُ يَا رَسُولَ اللَّهِ إِذًا يَحْلِفُ وَيَذْهَبُ بِمَالِي فَأَنْزَلَ اللَّهُ تَعَالَى { إِنَّ الَّذِينَ يَشْتَرُونَ بِعَهْدِ اللَّهِ وَأَيْمَانِهِمْ ثَمَنًا قَلِيلاً } إِلَى آخِرِ الآيَةِ .