عَنْ سَهْلِ بْنِ حُنَيْفٍ رَضِيَ اللَّهُ عَنْهُ قَالَ مَرَرْنَا بِسَيْلٍ فَدَخَلْتُ فَاغْتَسَلْتُ مِنْهُ فَخَرَجْتُ مَحْمُومًا فَنُمِيَ ذَلِكَ إِلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَقَالَ مُرُوا أَبَا ثَابِتٍ يَتَعَوَّذُ قُلْتُ يَا سَيِّدِي وَالرُّقَى صَالِحَةٌ قَالَ لَا رُقْيَةَ إِلَّا فِي نَفْسٍ أَوْ حُمَةٍ أَوْ لَدْغَةٍ قَالَ عَفَّانُ النَّظْرَةُ وَاللَّدْغَةُ وَالْحُمَةُ
Sayyiduna Sahl bin Hunaif (may Allah be pleased with him) narrates that we passed by a water pond, I entered it and bathed with that water. When I came out, I was feverish. When the Prophet (peace and blessings be upon him) came to know of this, he said: Tell Abu Thabit Sahl bin Hunaif to seek refuge with Allah Almighty. I said: O my master! Is it permissible to perform ruqyah (spiritual healing)? The Prophet (peace and blessings be upon him) said: Ruqyah should only be done when afflicted by the evil eye or bitten by a poisonous thing.