Sahih Muslim Book 1, Hadith Number 91.

Chapter : Precedence of the believers over one another and the superiority of the people of Yemen in this respect.

Abu Huraira said: I heard the Prophet (may peace and blessings be upon him) saying: There came the people of Yemen, they are tender of feelings and meek of hearts. The belief is that of the Yemenites, the sagacity is that of the Yemenites, the tranquillity is among the owners of goats and sheep, and pride and conceitedness is among the uncivil owners of the camels, the people of the tents in the direction of sunrise.