Bulugh al-Maram, Book 14, Hadith 30 (In-Book) ⓘ

Narrated al-Ash'ath bin Qais (RA): Allah's Messenger said: "If anyone swears a firm oath - knowingly, intentionally, taking by it property belonging to a Muslim, Allah will be angry with him when he meets Him (on the Day of Resurrection)." [Agreed upon].

وَعَنِ الْأَشْعَثِ بْنِ قَيْسٍ ‏- رضى الله عنه ‏- أَنَّ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-قَالَ: { "مَنْ حَلَفَ عَلَى يَمِينٍ, يَقْتَطِعُ بِهَا مَالَ امْرِئٍ مُسْلِمٍ, هُوَ فِيهَا فَاجِرٌ, لَقِيَ اَللَّهَ وَهُوَ عَلَيْهِ غَضْبَانُ } مُتَّفَقٌ عَلَيْه ِ 1‏.‏ ‏1 ‏- صحيح.‏ رواه البخاري ( 5 / 33 / فتح )‏، ومسلم ( 138 )‏.‏