Sunan an-Nasa'i, Volume 5, Book 45, Hadith 4796 (DarusSalam) ⓘ
It was narrated from Al-Qasim bin Rabi'ah that: the Messenger of Allah delivered a speech on the Day of the Conquest. (And he mentioned it) in Mursal from.
أَخْبَرَنِي مُحَمَّدُ بْنُ إِسْمَاعِيلَ بْنِ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا يُونُسُ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ أَيُّوبَ، عَنِ الْقَاسِمِ بْنِ رَبِيعَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم خَطَبَ يَوْمَ الْفَتْحِ . مُرْسَلٌ .
also referenced under: Hadith 4792 (Reference) & Book 45, Hadith 87 (In-Book)