‘Amr b. Shu'aib, on his father’s authority, told that his grandfather reported the Prophet as saying, “The testimony of a deceitful man or woman, or of an immoral man or woman, or of one who harbours rancour against his brother is not allowable," and he rejected the testimony of one who is dependent on a family. Abu Dawud transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب الإمارة والقضاء / 3782
Hadith Gradingالألبانی:لم تتمّ دراسته | زبیر علی زئی:حسن
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «حسن، رواه أبو داود (3600. 3601)»