صحیح مسلم · Hadith 1431

Jabir b. 'Abdullah reported that Umar b. al-Khattab had been cursing the pagans of the Quraish an the day (of the Battle) of Khandaq (Ditch). (He came to the Holy Prophet) and said: Messenger of Allah, by God, I could not say. the 'Asr prayer till the sun set. Upon this the Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) said: By Allah I, too, have not observed it. So we went to a valley. The Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) performed ablution and we too performed ablution, and then the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) said the 'Asr prayer after the sun had set. and then said the evening prayer after it.