Narrated ‘Abd ar-Rahman b. Abdallah quoted his father as saying:
When I we were on a journey with God’s Messenger and he had gone to relieve himself we saw a hummara* with two young ones and took the young ones, whereupon the hummara came and began to spread out its wings. Then when the Prophet came he said, “Who has pained this one by the loss of her young? Give her young ones back to her." He also saw an anthill which we had burned, and when he asked who had burned it and we replied that we had, he said, “It is not fitting that anyone but the Lord of the fire should punish with fire”
Anas told that some people of ‘Ukl who had come to the Prophet and accepted Islam found Medina unhealthy, so he ordered them to go to the camels of the sadaqa and drink some of their urine and their milk. They did so and became well, after which they apostatised, killed the herdsmen and drove off the camels. So he sent people in pursuit of them, and when they were brought he had their hands and feet cut off and their eyes put out and left them to die without cauterising them to stop the flow of blood. A version says nails were driven into their eyes. Another says he ordered nails to be heated and after having them blinded with them he had them thrown out on the harra, and although they begged for water they were left to die without being given any.
Abu Sa'id al-Khudri and Anas b Malik reported God’s Messenger as saying, “Disagreement and division will arise among my people. Some will speak well but do evil; they will recite the Qur’an but it will go no farther than their throats; they will swerve from the religion as an arrow goes through the animal shot at and will not return till an arrow comes back to the place where it was strung. They are the worst of men and animals. Blessed are they who kill them and are killed by them! They summon people to God’s Book, but they have no part with us. He who fights with them is nearer to God than they.” God’s Messenger was asked what mark they had, and said it was shaving.*
Abu Dawud transmitted it.
* Tahliq is here explained as going to extremes in shaving the head and taking the hair out by the roots.