Musnad Ahmad 30:2669

Yazid narrated to us, he said: Muhammad informed us, from Abu al-Zinad, from al-A'raj, from Abu Hurairah, who said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "The best of the women who ride camels are the righteous women of Quraysh; the most affectionate of them toward a child in his childhood, and the most protective of them over a husband regarding his wealth."