It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that indeed the Messenger of Allah (peace and blessings be upon him) delivered a sermon on the day of the conquest of Makkah, and in it he also said this... and he narrated this hadith.
Hadith Referenceمسند الشهاب / 170
Hadith Gradingمحدثین:إسناده حسن
Hadith Takhrij«إسناده حسن ، وأخرجه أبو داود :2751، وابن ماجه : 2685 ، وأحمد : 2/ 193، 2/ 215»