أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، قَالَ حَدَّثَنَا سَعِيدٌ، قَالَ حَدَّثَنَا قَتَادَةُ، أَنَّ أَنَسَ بْنَ مَالِكٍ، حَدَّثَهُمْ أَنَّ أُنَاسًا أَوْ رِجَالاً مِنْ عُكْلٍ قَدِمُوا عَلَى رَسُولِ اللَّهِ صلى الله عليه وسلم فَتَكَلَّمُوا بِالإِسْلاَمِ فَقَالُوا يَا رَسُولَ اللَّهِ إِنَّا أَهْلُ ضَرْعٍ وَلَمْ نَكُنْ أَهْلَ رِيفٍ ‏.‏ وَاسْتَوْخَمُوا الْمَدِينَةَ فَأَمَرَ لَهُمْ رَسُولُ اللَّهِ صلى الله عليه وسلم بِذَوْدٍ وَرَاعٍ وَأَمَرَهُمْ أَنْ يَخْرُجُوا فِيهَا فَيَشْرَبُوا مِنْ أَلْبَانِهَا وَأَبْوَالِهَا فَلَمَّا صَحُّوا وَكَانُوا بِنَاحِيَةِ الْحَرَّةِ كَفَرُوا بَعْدَ إِسْلاَمِهِمْ وَقَتَلُوا رَاعِيَ النَّبِيِّ صلى الله عليه وسلم وَاسْتَاقُوا الذَّوْدَ فَبَلَغَ النَّبِيَّ صلى الله عليه وسلم فَبَعَثَ الطَّلَبَ فِي آثَارِهْمِ فَأُتِيَ بِهِمْ فَسَمَرُوا أَعْيُنَهُمْ وَقَطَّعُوا أَيْدِيَهُمْ وَأَرْجُلَهُمْ ثُمَّ تُرِكُوا فِي الْحَرَّةِ عَلَى حَالِهِمْ حَتَّى مَاتُوا ‏.‏

It was narrated that Anas bin Malik narrated that "some people from 'Ukl came to the Messenger of Allah (PBUH) and spoke about Islam. They said: 'O Messenger of Allah, we are nomads who follows the herds, not farmers and growers, and the climate of Al-Madinah does not suit us.' So the Messenger of Allah (PBUH)told them to go out to a flock of female camels and drink their milk and urine. When they recovered - and they were in the vicinity of Al-Harrah - they apostatized after having become Muslim, killed the camel-herder of the Messenger of Allah (PBUH) and drove the camels away. News of that reached the Messenger of Allah (PBUH) and he sent people after them. They were brought back, their eyes were smoldered with heated nails, their hands and feet cut off, then they were left in Al-Harrah in that state until they died." Translation Not Available

Book Ref: Sunan An Nisai Book 1 Hadith 306
Web Ref:  Sunan An Nisai Not Available