Sunan Ibn Majah
44
Sahih+2

It was narrated from 'Irbad bin Sariyah said:"The Messenger of Allah (ﷺ) led us in Fajr (morning) prayer, then he turned to us and delivered an eloquent speech". And he mentioned something similar (as no)

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi