On the day of the Khandaq `Umar came, cursing the disbelievers of Quraish and said, "O Allah's Apostle! I have not offered the `Asr prayer and the sun has set." The Prophet (ﷺ) replied, "By Allah! I too, have not offered the prayer yet. "The Prophet (ﷺ) then went to Buthan, performed ablution and performed the `Asr prayer after the sun had set and then offered the Maghrib prayer after it."
Sahih al-Bukhari Book 12, Hadith 4
← Previous Hadith Once the Prophet (p.b.u.h) led the fear prayer and the people stood behind him. He said Takbir (Allahu-Akbar) and the people said the same. He bowed and some of them bowed. Then he prostrated and they also prostrated. Then he stood for the second rak`a and those who had prayed the first rak`a left and guarded their brothers. The second party joined him and performed bowing and prostration with him. All the people were in prayer but they were guarding one another during the prayer.

Sahih al-Bukhari Book 12, Hadith 3 Next Hadith → When the Prophet (ﷺ) returned from the battle of Al-Ahzab (The confederates), he said to us, "None should offer the 'Asr prayer but at Bani Quraiza." The 'Asr prayer became due for some of them on the way. Some of them decided not to offer the Salat but at Bani Quraiza while others decided to offer the Salat on the spot and said that the intention of the Prophet (ﷺ) was not what the former party had understood. And when that was told to the Prophet (ﷺ) he did not blame anyone of them.

Sahih al-Bukhari Book 12, Hadith 5