Sunan Ibn Majah 561
سنن ابن ماجه#561Sahihحَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا عِيسَى بْنُ يُونُسَ، عَنِ الأَعْمَشِ، عَنِ الْحَكَمِ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنْ كَعْبِ بْنِ عُجْرَةَ، عَنْ بِلاَلٍ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ مَسَحَ عَلَى الْخُفَّيْنِ وَالْخِمَارِ .
It was narrated from Bilal that:The Messenger of Allah wiped over his leather socks and his head cover (i.e., over the Imamah)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 1:295