حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ حَدَّثَنَا عَبْدُ الرَّزَّاقِ عَنْ ابْنِ جُرَيْجٍ حَدَّثَنِي عِمْرَانُ بْنُ مُوسَی عَنْ سَعِيدِ بْنِ أَبِي سَعِيدٍ الْمَقْبُرِيِّ يُحَدِّثُ عَنْ أَبِيهِ أَنَّهُ رَأَی أَبَا رَافِعٍ مَوْلَی النَّبِيِّ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ مَرَّ بِحَسَنِ بْنِ عَلِيٍّ عَلَيْهِمَا السَّلَام وَهُوَ يُصَلِّي قَائِمًا وَقَدْ غَرَزَ ضَفْرَهُ فِي قَفَاهُ فَحَلَّهَا أَبُو رَافِعٍ فَالْتَفَتَ حَسَنٌ إِلَيْهِ مُغْضَبًا فَقَالَ أَبُو رَافِعٍ أَقْبِلْ عَلَی صَلَاتِکَ وَلَا تَغْضَبْ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ ذَلِکَ کِفْلُ الشَّيْطَانِ يَعْنِي مَقْعَدَ الشَّيْطَانِ يَعْنِي مَغْرَزَ ضَفْرِهِ
سنن ابودوٗد · Hadith 646
Narrated Abu Rafi: Saeed ibn Abu Saeed al-Maqburi reported on the authority of his father that he saw Abu Rafi the freed slave of the Prophet ﷺ, passing by Hasan ibn Ali (Allah be pleased with them) when he was standing offering his prayer. He had tied the back knot of his hair. Abu Rafi untied it. Hasan turned to him with anger, Abu Rafi said to him: Concentrate on your prayer and do not be angry: I heard the Messenger of Allah ﷺ say: This is the seat of the devil, referring to the back knot of the hair.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020