Hazrat Abu Qilabah narrates that Hazrat Anas bin Malik (may Allah be pleased with him) told me that a group of eight people from the tribe of ‘Ukl came to the service of the Prophet Muhammad (peace and blessings be upon him) and pledged allegiance to Islam. But the land (of Madinah) did not suit them, so their bodies became ill and they complained about this to the Messenger of Allah (peace and blessings be upon him). He (peace and blessings be upon him) said: "Why do you not go with our shepherd to his camels and use the milk and urine of those camels?" They said: Why not, so they went and drank the urine and milk of the camels.