Sahih Muslim
Sahih Muslim 110b
حَدَّثَنِي أَبُو غَسَّانَ الْمِسْمَعِيُّ، حَدَّثَنَا مُعَاذٌ، - وَهُوَ ابْنُ هِشَامٍ - قَالَ حَدَّثَنِي أَبِي، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، قَالَ حَدَّثَنِي أَبُو قِلاَبَةَ، عَنْ ثَابِتِ بْنِ الضَّحَّاكِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لَيْسَ عَلَى رَجُلٍ نَذْرٌ فِيمَا لاَ يَمْلِكُ وَلَعْنُ الْمُؤْمِنِ كَقَتْلِهِ وَمَنْ قَتَلَ نَفْسَهُ بِشَىْءٍ فِي الدُّنْيَا عُذِّبَ بِهِ يَوْمَ الْقِيَامَةِ وَمَنِ ادَّعَى دَعْوَى كَاذِبَةً لِيَتَكَثَّرَ بِهَا لَمْ يَزِدْهُ اللَّهُ إِلاَّ قِلَّةً وَمَنْ حَلَفَ عَلَى يَمِينِ صَبْرٍ فَاجِرَةٍ " .
Abu Ghassan al-Misma'i narrated to me; Mu'adh—that is, Ibn Hisham—narrated to us; he said: My father narrated to me, from Yahya ibn Abi Kathir, who said: Abu Qilabah narrated to me, from Thabit ibn al-Dahhak, from the Prophet (peace and blessings be upon him), who said: ‘A man is not bound by a vow concerning something he does not own. Cursing a believer is like killing him. Whoever kills himself with something in this world will be punished with it on the Day of Resurrection. Whoever makes a false claim to increase his wealth will only have his scarcity increased by Allah. And whoever takes a deliberate, sinful oath…’
Translation notes
The Arabic source ends mid-report after mentioning a sinful oath.