Sahih Muslim
The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet (May Peace Be Upon Him) (Kitab Al-Fadail Al-Sahabah)
Book Number: 031 / Hadith Number: 6119
This hadith has been transmitted on the authority of Ibn Umar with a slight variation of wording (and the wording) that Allah's Messenger (may peace be upon him) said this on the pulpit. This hadith has been reported on the authority of Ibn Umar but through another chain of transmitters.