كتاب السلام
39  
The Book of Greetings
(23)
Chapter: The Permissibility Of Accepting A Reward For Reciting Ruqyah With Qur'an And Supplications
(23)
باب جَوَازِ أَخْذِ الأُجْرَةِ عَلَى الرُّقْيَةِ بِالْقُرْآنِ وَالأَذْكَارِ ‏‏
Sahih Muslim 2201 c

Abu Sa'id al-Khudri reported:

We landed at a place where a woman came to us and said: A scorpion has bitten the chief of the tribe. Is there any incantator amongst you? A person amongst us stood up (and went with her). We had no idea that he had been a good incantator but he practiced incantation with the help of Sura al-Fatiha and the (the chief) was all right. They gave him a flock of sheep and served us milk. We said (to him): Are you a good incantator. Thereupon he said: I did not do it but by the help of Sura al-Fatiha. He said: Do not drive (these goats) until we go to Allah's Messenger (ﷺ) and find out (whether it is permissible to accept (this reward of incantation). So we came to Allah's Apostle (ﷺ) and made a mention of that to him, whereupon he said: How did you come to know that this (Sura al-Fatiha) could be used as an incantation? So distribute them (amongst those who had been present there with him) and allocate a share of mine also.
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، أَخْبَرَنَا هِشَامُ بْنُ حَسَّانَ، عَنْ مُحَمَّدِ بْنِ سِيرِينَ، عَنْ أَخِيهِ، مَعْبَدِ بْنِ سِيرِينَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، قَالَ نَزَلْنَا مَنْزِلاً فَأَتَتْنَا امْرَأَةٌ فَقَالَتْ إِنَّ سَيِّدَ الْحَىِّ سَلِيمٌ لُدِغَ فَهَلْ فِيكُمْ مِنْ رَاقٍ فَقَامَ مَعَهَا رَجُلٌ مِنَّا مَا كُنَّا نَظُنُّهُ يُحْسِنُ رُقْيَةً فَرَقَاهُ بِفَاتِحَةِ الْكِتَابِ فَبَرَأَ فَأَعْطَوْهُ غَنَمًا وَسَقَوْنَا لَبَنًا فَقُلْنَا أَكُنْتَ تُحْسِنُ رُقْيَةً فَقَالَ مَا رَقَيْتُهُ إِلاَّ بِفَاتِحَةِ الْكِتَابِ ‏.‏ قَالَ فَقُلْتُ لاَ تُحَرِّكُوهَا حَتَّى نَأْتِيَ النَّبِيَّ صلى الله عليه وسلم ‏.‏ فَأَتَيْنَا النَّبِيَّ صلى الله عليه وسلم فَذَكَرْنَا ذَلِكَ لَهُ ‏.‏ فَقَالَ ‏ "‏ مَا كَانَ يُدْرِيهِ أَنَّهَا رُقْيَةٌ اقْسِمُوا وَاضْرِبُوا لِي بِسَهْمٍ مَعَكُمْ ‏"‏ ‏.‏
Reference : Sahih Muslim 2201c
In-book reference : Book 39, Hadith 89
USC-MSA web (English) reference : Book 26, Hadith 5460
  (deprecated numbering scheme)