Sunan an-Nasa'i, Volume 5, Book 37, Hadith 4040 (DarusSalam) ⓘ

It was narrated that Anas bin Malik said: "Some Bedouin from 'Uraynah came to the Prophet of Allah [SAW] and accepted Islam, but the climate of Al-Madinah did not suit them; their skin turned yellow and their bellies became swollen. The Prophet of Allah sent them to some milk camels of his and told them to drink their milk and urine until they recovered. Then they killed their herdsmen and drove off the camels. The Prophet of Allah sent (men) after them and they were brought back, then he had their hands and feet cut off, and their eyes were branded." The Commander of the Believers, 'Abdul-Malik, said to Anas, when he was narrating this Hadith: "Was that (punishment) for Kufr or for sin?" He said: "For Kufr."

أَخْبَرَنِي مُحَمَّدُ بْنُ وَهْبٍ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ سَلَمَةَ، قَالَ حَدَّثَنِي أَبُو عَبْدِ الرَّحِيمِ، قَالَ حَدَّثَنِي زَيْدُ بْنُ أَبِي أُنَيْسَةَ، عَنْ طَلْحَةَ بْنِ مُصَرِّفٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَدِمَ أَعْرَابٌ مِنْ عُرَيْنَةَ إِلَى نَبِيِّ اللَّهِ صلى الله عليه وسلم فَأَسْلَمُوا فَاجْتَوَوُا الْمَدِينَةَ حَتَّى اصْفَرَّتْ أَلْوَانُهُمْ وَعَظُمَتْ بُطُونُهُمْ فَبَعَثَ بِهِمْ نَبِيُّ اللَّهِ صلى الله عليه وسلم إِلَى لِقَاحٍ لَهُ فَأَمَرَهُمْ أَنْ يَشْرَبُوا مِنْ أَلْبَانِهَا وَأَبْوَالِهَا حَتَّى صَحُّوا فَقَتَلُوا رُعَاتِهَا وَاسْتَاقُوا الإِبِلَ فَبَعَثَ نَبِيُّ اللَّهِ صلى الله عليه وسلم فِي طَلَبِهِمْ فَأُتِيَ بِهِمْ فَقَطَّعَ أَيْدِيَهُمْ وَأَرْجُلَهُمْ وَسَمَّرَ أَعْيُنَهُمْ ‏.‏ قَالَ أَمِيرُ الْمُؤْمِنِينَ عَبْدُ الْمَلِكِ لأَنَسٍ وَهُوَ يُحَدِّثُهُ هَذَا الْحَدِيثَ بِكُفْرٍ أَوْ بِذَنْبٍ قَالَ بِكُفْرٍ ‏.‏