Sunan An-Nasa'i

It was narrated from Abu Hurairah that:The Messenger of Allah (ﷺ) prayed one day and said the salam after two rak'ahs, then he left. Dhul-Shimalain caught up with him and said: ""O Messenger of Alah, has the prayer been shortened or did you forget?"" He said: ""The prayer has not been shortened, and I did not forget."" He said: ""Yes, by the One Who sent you with the truth."" The Messenger of Allah (ﷺ) said: 'Is Dhul-Yadain speaking the truth?"" They said: 'Yes.' So he led the people in praying two rak'ahs