"The Messenger of Allah ﷺ used to perform Wudu' for every prayer. One the day of the Conquest (of Makkah), he offered all the prayers with one Wudu'. 'Umar said to him: 'You have done something that you never did before.' He said: 'I did that deliberately, O 'Umar.'"  

كَانَ رَسُولُ اللَّهِ ﷺ يَتَوَضَّأُ لِكُلِّ صَلاَةٍ فَلَمَّا كَانَ يَوْمُ الْفَتْحِ صَلَّى الصَّلَوَاتِ بِوُضُوءٍ وَاحِدٍ فَقَالَ لَهُ عُمَرُ فَعَلْتَ شَيْئًا لَمْ تَكُنْ تَفْعَلُهُ قَالَ عَمْدًا فَعَلْتُهُ يَا عُمَرُ  

"The Prophet would perform Wudu for every Salat. So during the year of the Conquest, he performed all of the prayers with one Wudu, and he wiped over his Khuff. So Umar said, 'You did something that you have not done before?' He replied: "I did it on purpose."  

كَانَ النَّبِيُّ ﷺ يَتَوَضَّأُ لِكُلِّ صَلاَةٍ فَلَمَّا كَانَ عَامُ الْفَتْحِ صَلَّى الصَّلَوَاتِ كُلَّهَا بِوُضُوءٍ وَاحِدٍ وَمَسَحَ عَلَى خُفَّيْهِ فَقَالَ عُمَرُ إِنَّكَ فَعَلْتَ شَيْئًا لَمْ تَكُنْ فَعَلْتَهُ قَالَ عَمْدًا فَعَلْتُهُ  

"The Messenger of Allah ﷺ used to perform Wudu' for every prayer. One the day of the Conquest (of Makkah), he offered all the prayers with one Wudu'. 'Umar said to him: 'You have done something that you never did before.' He said: 'I did that deliberately, O 'Umar.'" (Using translation from Nasāʾī 133)   

كَانَ النَّبِيُّ ﷺ يَتَوَضَّأُ عِنْدَ كُلِّ صَلَاةٍ فَلَمَّا كَانَ يَوْمُ الْفَتْحِ تَوَضَّأَ وَمَسَحَ عَلَى خُفَّيْهِ وَصَلَّى الصَّلَوَاتِ بِوُضُوءٍ وَاحِدٍ فَقَالَ لَهُ عُمَرُ يَا رَسُولَ اللهِ إِنَّكَ فَعَلْتَ شَيْئًا لَمْ تَكُنْ تَفْعَلُهُ قَالَ إِنِّي عَمْدًا فَعَلْتُهُ يَا عُمَرُ