حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، حَدَّثَنَا الأَعْمَشُ، عَنْ جَعْفَرِ بْنِ إِيَاسٍ، عَنْ أَبِي نَضْرَةَ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، قَالَ بَعَثَنَا رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ثَلاَثِينَ رَاكِبًا فِي سَرِيَّةٍ فَنَزَلْنَا بِقَوْمٍ فَسَأَلْنَاهُمْ أَنْ يَقْرُونَا فَأَبَوْا فَلُدِغَ سَيِّدُهُمْ فَأَتَوْنَا فَقَالُوا أَفِيكُمْ أَحَدٌ يَرْقِي مِنَ الْعَقْرَبِ فَقُلْتُ نَعَمْ أَنَا وَلَكِنْ لاَ أَرْقِيهِ حَتَّى تُعْطُونَا غَنَمًا ‏.‏ قَالُوا فَإِنَّا نُعْطِيكُمْ ثَلاَثِينَ شَاةً ‏.‏ فَقَبِلْنَاهَا فَقَرَأْتُ عَلَيْهِ ‏(‏ الْحَمْدُ ‏)‏ سَبْعَ مَرَّاتٍ فَبَرِئَ وَقَبَضْنَا الْغَنَمَ فَعَرَضَ فِي أَنْفُسِنَا مِنْهَا شَىْءٌ فَقُلْنَا لاَ تَعْجَلُوا حَتَّى نَأْتِيَ النَّبِيَّ ـ صلى الله عليه وسلم ـ فَلَمَّا قَدِمْنَا ذَكَرْتُ لَهُ الَّذِي صَنَعْتُ فَقَالَ ‏"‏ أَوَ مَا عَلِمْتَ أَنَّهَا رُقْيَةٌ اقْتَسِمُوهَا وَاضْرِبُوا لِي مَعَكُمْ سَهْمًا ‏"‏ ‏.‏

It was narrated that Abu Sa'eed Al-Khudri said: "The Messenger of Allah (PBUH) sent us, thirty horsemen, on a military campaign. We camped near some people and asked them for hospitality but they refused. Then their leader was stung by a scorpion and they said: 'Is there anyone among you who can recite Ruqyah for a scorpion sting?' I said: 'Yes, I can, but I will not recite Ruqyah for him until you give us some sheep.' They said: 'We will give you thirty sheep.' So we accepted them, and I recited Al-Hamd (i.e. Al-Fatihah) over him seven times. Then he recovered, and I took the sheep. Then some doubts occurred within ourselves. Then we said: 'Let us not hasten (to make a decision concerning the sheep) until we come to the Prophet (PBUH)' So when we came back: 'I told him what I had done. He said: 'How did you know that it is a Ruqyah? Divide them up and give me a share as well.'" Translation Not Available

Book Ref: Sunan Ibn Majah Book 12 Hadith 2156
Web Ref:  Sunan Ibn Majah Vol 3 Book 12 Hadith 2156