Musnad Ahmad 30:534

'Abd al-Razzaq narrated to us, Ma'mar narrated to us, from al-Zuhri, from Ibn al-Musayyib and Abu Salamah, or one of them, from Abu Hurayrah, who said: The Messenger of Allah, may Allah bless him and grant him peace, said: "Boasting and arrogance are in the loud-voiced people of the camel-hair tent dwellers, and tranquility is in the people of the sheep. Faith is Yemeni, and wisdom is Yemeni."