Muhammad ibn Ahmad ibn Abi Khalaf narrated to us, Rawh narrated to us — and Ishaq ibn Mansur narrated to me, Rawh ibn 'Ubadah informed us — Ibn Jurayj narrated to us, Abu al-Zubayr informed me that he heard Jabir ibn 'Abd Allah say: The Messenger of Allah, peace and blessings be upon him, commanded us to kill dogs, to the extent that a woman would come from the countryside with her dog and we would kill it. Then the Prophet, peace and blessings be upon him, forbade killing them and said: "You should kill the pure black one with the two spots, for it is a devil."