Sunan An-Nasa'i

It was narrated from Salim bin Abdullah that:Abdullah bin Umar came to Al-Hajjaj bin Yusuf on the day of Arafat when the sun has passed its zenith, and I was with him. He said: ""We have to move on if you want to follow Sunnah."" He said to him: ""At this hours?"" He said: Yes."" Salim said: ""I said to Al-Hajjaj: 'If you want to follow the Sunnah, then deliver a short Khutbah and hasten to pray.' Abdullah bin Umar said: 'He is telling the truth