حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ، حَدَّثَنِي عُيَيْنَةُ بْنُ عَبْدِ الرَّحْمَنِ، حَدَّثَنِي أَبِي، عَنْ عُثْمَانَ بْنِ أَبِي الْعَاصِ، قَالَ لَمَّا اسْتَعْمَلَنِي رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ عَلَى الطَّائِفِ جَعَلَ يَعْرِضُ لِي شَىْءٌ فِي صَلاَتِي حَتَّى مَا أَدْرِي مَا أُصَلِّي فَلَمَّا رَأَيْتُ ذَلِكَ رَحَلْتُ إِلَى رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ فَقَالَ ‏"‏ ابْنُ أَبِي الْعَاصِ ‏"‏ ‏.‏ قُلْتُ نَعَمْ يَا رَسُولَ اللَّهِ ‏.‏ قَالَ ‏"‏ مَا جَاءَ بِكَ ‏"‏ ‏.‏ قُلْتُ يَا رَسُولَ اللَّهِ عَرَضَ لِي شَىْءٌ فِي صَلاَتِي حَتَّى مَا أَدْرِي مَا أُصَلِّي ‏.‏ قَالَ ‏"‏ ذَاكَ الشَّيْطَانُ ادْنُهْ ‏"‏ ‏.‏ فَدَنَوْتُ مِنْهُ فَجَلَسْتُ عَلَى صُدُورِ قَدَمَىَّ ‏.‏ قَالَ فَضَرَبَ صَدْرِي بِيَدِهِ وَتَفَلَ فِي فَمِي وَقَالَ ‏"‏ اخْرُجْ عَدُوَّ اللَّهِ ‏"‏ ‏.‏ فَفَعَلَ ذَلِكَ ثَلاَثَ مَرَّاتٍ ثُمَّ قَالَ ‏"‏ الْحَقْ بِعَمَلِكَ ‏"‏ ‏.‏ قَالَ فَقَالَ عُثْمَانُ فَلَعَمْرِي مَا أَحْسِبُهُ خَالَطَنِي بَعْدُ ‏.‏

It wasnarrated that ‘Uthman bin Abul-‘As said: “When the MessengerofAllah (PBUH) appointed me as governor of Ta’if, I began to getconfused during my prayer, until I no longer knew what I was doing.When I noticed that, I travelled to the Messenger of Allah (PBUH), andhe said: ‘The son of Abul-‘As?’ I said: ‘Yes, O Messenger ofAllah.’He said: ‘What brings you here?’ He said: ‘OMessenger of Allah, I getconfused during my prayer, until I do notknow what I am doing.’ Hesaid: ‘That is Satan. Come here.’ SoI came close to him, and sat uponthe front part of my feet then hestruck my chest with his hand andput some spittle in my mouth andsaid: ‘Get out, O enemy of Allah!’ Hedid that three times, thenhe said: ‘Get on with your work.’” ‘Uthmansaid: “Indeed, Inever felt confused (during my prayer) after that.” Translation Not Available

Book Ref: Sunan Ibn Majah Book 31 Hadith 3548
Web Ref:  Sunan Ibn Majah Vol 4 Book 31 Hadith 3548