Volume 1, Book 10, Number 570:
Narrated Jabir bin ‘Abdullah:
On the day of Al-Khandaq (the battle of trench.) ‘Umar bin Al-Khattab came cursing the disbe –
lievers of Quraish after the sun had set and said, “O Allah’s Apostle I could not offer the ‘Asr prayer
till the sun had set.” The Prophet said, “By Allah! I, too, have not prayed.” So we turned towards
Buthan, and the Prophet performed ablution and we too performed ablution and offered the ‘Asr
prayer after the sun had set, and then he offered the Maghrib prayer.