“The Testimony of a man or woman who is treacherous, or of one who has been subjected to one of the Haad punishments of Islam, or of one who bears a grudge against his brother, is not permissible.”  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ تَجُوزُ شَهَادَةُ خَائِنٍ وَلاَ خَائِنَةٍ وَلاَ مَحْدُودٍ فِي الإِسْلاَمِ وَلاَ ذِي غِمْرٍ عَلَى أَخِيهِ  

“The testimony of a Bedouin against a town-dweller is not permissible.”  

أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ لاَ تَجُوزُ شَهَادَةُ بَدَوِيٍّ عَلَى صَاحِبِ قَرْيَةٍ