It was narrated from Anas bin Malik that some Bedouins from 'Urainah came to the Prophet (ﷺ) and became Muslims, but the climate of Al-Madinah did not suit them; their skin turned yellow and their stomachs became swollen. The Messenger of Allah (ﷺ) sent them to some pregnant camels of his and told them to drink their milk and urine until they recovered. Then they killed the camel-herder and drove the camels away. The Messenger of Allah (ﷺ) sent people after then and they were brought back. their hands and feet were cut off and their eyes were smoldered with burning nails. The Commander of the Believers, 'Abdul-Malik, said to Anas - when he was narrating this Hadith to him - "(Were they being punished) for Kufr or for a sin?" He said:

"For Kufr."

أَخْبَرَنَا مُحَمَّدُ بْنُ وَهْبٍ، حَدَّثَنَا مُحَمَّدُ بْنُ سَلَمَةَ، عَنْ أَبِي 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 النَّبِيِّ صلى الله عليه وسلم فَأَسْلَمُوا فَاجْتَوَوُا الْمَدِينَةَ حَتَّى اصْفَرَّتْ أَلْوَانُهُمْ وَعَظُمَتْ بُطُونُهُمْ فَبَعَثَ بِهِمْ رَسُولُ اللَّهِ صلى الله عليه وسلم إِلَى لِقَاحٍ لَهُ وَأَمَرَهُمْ أَنْ يَشْرَبُوا مِنْ أَلْبَانِهَا وَأَبْوَالِهَا حَتَّى صَحُّوا فَقَتَلُوا رَاعِيَهَا وَاسْتَاقُوا الإِبِلَ فَبَعَثَ نَبِيُّ اللَّهِ صلى الله عليه وسلم فِي طَلَبِهِمْ فَأُتِيَ بِهِمْ فَقَطَعَ أَيْدِيَهُمْ وَأَرْجُلَهُمْ وَسَمَرَ أَعْيُنَهُمْ ‏.‏ قَالَ أَمِيرُ الْمُؤْمِنِينَ عَبْدُ الْمَلِكِ لأَنَسٍ وَهُوَ يُحَدِّثُهُ هَذَا الْحَدِيثَ بِكُفْرٍ أَمْ بِذَنْبٍ قَالَ بِكُفْرٍ ‏.‏ قَالَ أَبُو عَبْدِ الرَّحْمَنِ لاَ نَعْلَمُ أَحَدًا قَالَ عَنْ يَحْيَى عَنْ أَنَسٍ فِي هَذَا الْحَدِيثِ غَيْرَ طَلْحَةَ وَالصَّوَابُ عِنْدِي وَاللَّهُ تَعَالَى أَعْلَمُ يَحْيَى عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ مُرْسَلٌ ‏.‏