On the day of the Khandaq ʿUmar came, cursing the disbelievers of Quraish and said, "O Allah's Apostle! I have not offered the ʿAsr 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 ʿAsr prayer after the sun had set and then offered the Maghrib prayer after it."  

جَاءَ عُمَرُ يَوْمَ الْخَنْدَقِ فَجَعَلَ يَسُبُّ كُفَّارَ قُرَيْشٍ وَيَقُولُ يَا رَسُولَ اللَّهِ مَا صَلَّيْتُ الْعَصْرَ حَتَّى كَادَتِ الشَّمْسُ أَنْ تَغِيبَ فَقَالَ النَّبِيُّ ﷺ وَأَنَا وَاللَّهِ مَا صَلَّيْتُهَا بَعْدُ قَالَ فَنَزَلَ إِلَى بُطْحَانَ فَتَوَضَّأَ وَصَلَّى الْعَصْرَ بَعْدَ مَا غَابَتِ الشَّمْسُ ثُمَّ صَلَّى الْمَغْرِبَ بَعْدَهَا  

"On the Day of Al-Khandaq (the battle of the Trench), Umar bin Al-Khattab came cursing the disbelievers of Quraish and said: 'O Messenger of Allah! I could not offer he Asr prayer until the sun was about to set.' The Prophet said: 'By Allah! I too have not offered the Salat.'" So he said: "We descended into Buthan, Messenger of Allah performed Wudu and we too performed Wudu. Messenger of Allah prayed Asr after the sun had set, then after it he prayed Maghrib."  

يَوْمَ الْخَنْدَقِ وَجَعَلَ يَسُبُّ كُفَّارَ قُرَيْشٍ قَالَ يَا رَسُولَ اللَّهِ مَا كِدْتُ أُصَلِّي الْعَصْرَ حَتَّى تَغْرُبَ الشَّمْسُ فَقَالَ رَسُولُ اللَّهِ ﷺ وَاللَّهِ إِنْ صَلَّيْتُهَا قَالَ فَنَزَلْنَا بُطْحَانَ فَتَوَضَّأَ رَسُولُ اللَّهِ ﷺ وَتَوَضَّأْنَا فَصَلَّى رَسُولُ اللَّهِ ﷺ الْعَصْرَ بَعْدَ مَا غَرَبَتِ الشَّمْسُ ثُمَّ صَلَّى بَعْدَهَا الْمَغْرِبَ  

" جاء عمر يوم الخندق فجعل يسب كفار قريش ويقول: يا رسول الله! ما صليت العصر حتى كادت الشمس أن تغيب، فقال رسول الله ﷺ : وأنا والله ما صليت بعد، فنزل فتوضأ ثم صلى العصر بعد ما غربت الشمس، ثم صلى المغرب بعد ما صلى العصر ".