The Prophet (saws) branded the eyes of those who fought

Narrated Anas bin Malik: A group of people from `Ukl (or `Uraina) tribe ----but I think he said that they were from `Ukl came to Medina and (they became ill, so) the Prophet (ﷺ) ordered them to go to the herd of (Milch) she-camels and told them to go out and drink the camels' urine and milk (as a medicine). So they went and drank it, and when they became healthy, they killed the shepherd and drove away the camels. This news reached the Prophet (ﷺ) early in the morning, so he sent (some) men in their pursuit and they were captured and brought to the Prophet (ﷺ) before midday. He ordered to cut off their hands and legs and their eyes to be branded with heated iron pieces and they were thrown at Al-Harra, and when they asked for water to drink, they were not given water. (Abu Qilaba said, "Those were the people who committed theft and murder and reverted to disbelief after being believers (Muslims), and fought against Allah and His Apostle").