Sahih Bukhari Volume 4, Book 61, Hadith 3500

حَدَّثَنَا أَبُو الْيَمَانِ، أَخْبَرَنَا شُعَيْبٌ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ، أَنَّ أَبَا هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏"‏ الْفَخْرُ وَالْخُيَلاَءُ فِي الْفَدَّادِينَ أَهْلِ الْوَبَرِ، وَالسَّكِينَةُ فِي أَهْلِ الْغَنَمِ، وَالإِيمَانُ يَمَانٍ، وَالْحِكْمَةُ يَمَانِيَةٌ ‏"‏‏.‏ سُمِّيَتِ الْيَمَنَ لأَنَّهَا عَنْ يَمِينِ الْكَعْبَةِ، وَالشَّأْمَ عَنْ يَسَارِ الْكَعْبَةِ، وَالْمَشْأَمَةُ الْمَيْسَرَةُ، وَالْيَدُ الْيُسْرَى الشُّؤْمَى، وَالْجَانِبُ الأَيْسَرُ الأَشْأَمُ‏.‏

Narrated By Abu Huraira : I heard Allah's Apostle saying, "Pride and arrogance are characteristics of the rural bedouins while calmness is found among the owners of sheep. Belief is Yemenite, and wisdom is also Yemenite i.e. the Yemenites are well-known for their true belief and wisdom)." Abu 'Abdullah (Al-Bukhari) said, "Yemen was called so because it is situated to the right of the Ka'ba, and Sham was called so because it is situated to the left of the Ka'ba."