ذِكْرُ الزَّجْرِ عَنْ تَعَوُّدِ الْمَرْءِ الْكَذِبَ فِي كَلَامِهِ، إِذِ الْكَذِبُ مِنَ الْفُجُورِ
the Messenger of Allah ﷺ said, "You must be truthful, for it leads to righteousness and they are both in Paradise. And beware of dishonesty, for it leads to wickedness and they are both in the Hellfire." (Using translation from Ṭabarānī 17005)
قَالَ رَسُولُ اللَّهِ ﷺ «عَلَيْكُمْ بِالصِّدْقِ فَإِنَّهُ مَعَ الْبِرِّ وَهُمَا فِي الْجَنَّةِ وَإِيَّاكُمْ وَالْكَذِبَ فَإِنَّهُ مَعَ الْفُجُورِ وَهُمَا فِي النَّارِ»