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.
Hadith Referenceسنن ابي داود / كتاب الصلاة / 646
Hadith Gradingالألبانی:حسن | زبیر علی زئی:إسناده حسن
Hadith Takhrij« سنن الترمذی/الصلاة 170 (384)، (تحفة الأشراف: 12030)، وقد أخرجہ: سنن ابن ماجہ/إقامةالصلاة 167 (1042)، مسند احمد (6/8، 391)، سنن الدارمی/الصلاة 105 (1420) (حسن) »
Narrated Abdullah ibn Abbas: Kurayb the freed slave of Ibn Abbas reported: Abdullah ibn Abbas saw Abdullah ibn al-Harith praying having the back knot of the hair. He stood behind him and began to untie it. He remained standing unmoved (stationary). When he finished his prayer he came to Ibn Abbas and said to him: What were you doing with my head? He said: I heard the Messenger of Allah ﷺ say: A man who prays with the black knot of hair tied is the one praying pinioned.
Hadith Referenceسنن ابي داود / كتاب الصلاة / 647
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم (492)