Musnad Ahmad 32:102

Ibn Abi ‘Adi narrated to us, from Humayd, from Anas, who said: Some people from ‘Uraynah accepted Islam, but the climate of Medina did not agree with them. The Messenger of Allah, peace and blessings of Allah be upon him, said to them: "If you were to go out to some camels of ours and drink from their milk" — Humayd said: And Qatadah said, from Anas: "and their urine" — so they did. When they recovered, they disbelieved after their Islam, killed the shepherd of the Messenger of Allah, peace and blessings of Allah be upon him—who was a believer or a Muslim—drove away the camels of the Messenger of Allah, peace and blessings of Allah be upon him, and fled as combatants. The Messenger of Allah, peace and blessings of Allah be upon him, sent [men] in their tracks. They were captured, and he cut off their hands and their feet, branded their eyes, and left them in the rocky volcanic field (al-Harrah) until they died.