Sunan an-Nasa'i 596

It was narrated that Nafi' said:"We came back with Ibn 'Umar from Makkah. One night he kept on travelling until evening came, and we thought that he had forgotten the prayer!' But he kept quiet and kept going until the twilight had almost disappeared, then he stopped and prayed, and when the twilight disappeared he prayed 'Isha'. Then he turned to us and said: This is what we used to do with the Messenger of Allah (ﷺ) if he was in a hurry to travel