ذِكْرُ الْبَيَانِ بِأَنَّ الْيَمِينَ الْغَمُوسَ الَّذِي وَصَفْنَاهُ مِنَ الْكَبَائِرِ
[Machine] The Messenger of Allah ﷺ said: "Among the major sins are associating partners with Allah, disobeying parents, false oaths and swearing by Allah's name falsely. I swear by the One in whose hand is my soul, a man does not swear an oath on something as insignificant as the wing of a mosquito, except that it will be written as a black mark in his heart on the Day of Resurrection."
قَالَ رَسُولُ اللَّهِ ﷺ «مِنْ أَكْبَرُ الْكَبَائِرِ الْإِشْرَاكُ بِاللَّهِ وَعُقُوقُ الْوَالِدَيْنِ وَالْيَمِينُ الْغَمُوسُ وَالَّذِي نَفْسِي بِيَدِهِ لَا يَحْلِفُ الرَّجُلُ عَلَى مِثْلِ جَنَاحِ بَعُوضَةٍ إِلَّا كَانَتْ كَيَّةً * فِي قَلْبِهِ يَوْمَ الْقِيَامَةِ»