Abu Mas'ud al-Ansari reported the Prophet as saying, "From here I (indicating the east) dissensions have come, and roughness and harsh hearts are to be found among the husbandmen who live in camel-hair tents who walk behind camels and oxen among Rabi'a and Mudar. (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب المناقب / 6269
Hadith Gradingالألبانی:مُتَّفَقٌ عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (3498) و مسلم (81/ 51)»