TABARANI 1332:
from Thābit b. al-Ḍaḥḥāk —
"Whoever swears by a religion other than Islam, telling a lie, will be as he said, and whoever kills himself with something, he will be punished with it in the Hereafter, and there is no vow concerning that which a man does not possess." (Using translation from Nasāʾī 3813)
الطبراني ١٣٣٢:
عن ثابت بن الضحاك —
أَنَّ رَسُولَ اللهِ ﷺ قَالَ «لَيْسَ عَلَى رَجُلٍ نَذْرٌ فِيمَا لَا يَمْلِكُ وَلَعُنُ الْمُؤْمِنِ كَقَتْلِهِ وَمَنْ قَتَلَ نَفْسَهُ بِشَيْءٍ فِي الدُّنْيَا عُذِّبَ بِهِ يَوْمَ الْقِيَامَةِ وَمَنْ حَلَفَ بِمِلَّةٍ سِوَى الْإِسْلَامِ كَاذِبًا فَهُوَ كَمَا قَالَ وَمَنْ قَذَفَ مُؤْمِنًا بِكُفْرٍ فَهُوَ كَقَتْلِهِ»
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